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data-ooui='{"_":"OO.ui.StackLayout","preserveContent":false,"expanded":false,"items":[{"tag":"ooui-php-4"},{"tag":"ooui-php-5"}]}'><div role='tabpanel' id='ooui-php-4' class='wbmi-tab oo-ui-layout oo-ui-panelLayout oo-ui-panelLayout-scrollable oo-ui-tabPanelLayout oo-ui-tabPanelLayout-active' data-ooui='{"_":"OO.ui.TabPanelLayout","name":"wikiTextPlusCaptions","label":"File information","scrollable":true,"expanded":false,"classes":["wbmi-tab"]}'><h2 class="wbmi-captions-header">Captions</h2><div class='wbmi-entityview-captionsPanel oo-ui-layout oo-ui-panelLayout oo-ui-panelLayout-framed'><h3 class='wbmi-entityview-captions-header'>Captions</h3><div class='wbmi-entityview-caption oo-ui-layout oo-ui-horizontalLayout'><label class='wbmi-language-label oo-ui-widget oo-ui-widget-enabled oo-ui-labelElement-label oo-ui-labelElement oo-ui-labelWidget'>English</label><div lang='en' dir='ltr' class='wbmi-caption-value wbmi-entityview-emptyCaption'>Add a one-line explanation of what this file represents</div></div></div><div id="mw-imagepage-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="mw-heading mw-heading2"><h2 id="Summary">Summary</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=File:Yellowing_of_thorium_lenses.jpg&action=edit&section=1" title="Edit section: Summary"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="hproduct commons-file-information-table"> <table class="fileinfotpl-type-information vevent" dir="ltr"> <tbody><tr> <td id="fileinfotpl_desc" class="fileinfo-paramfield" lang="en">Description<span class="summary fn" style="display:none">Yellowing of thorium lenses.jpg</span></td> <td class="description"> <div class="description en" dir="ltr" lang="en"><span class="language en" title="English"><b>English: </b></span> Some older photographic lenses were produced with glass elements containing small amounts of thorium. If stored in the dark for prolonged periods of time, these lenses can undergo what is commonly called “yellowing”. While some photographers enjoy the effect the yellowed glass has on their photographs (it acts similar to a weak <a href="https://en.wikipedia.org/wiki/Photographic_filter#Contrast_enhancement" class="extiw" title="en:Photographic filter">yellow filter</a>), others prefer to reverse it by exposing the lens to a <a href="https://en.wikipedia.org/wiki/Ultraviolet" class="extiw" title="en:Ultraviolet">UV</a> light source. <ul><li>left: a yellowed <i>Super-Multi-Coated <a href="https://en.wikipedia.org/wiki/Takumar" class="extiw" title="en:Takumar">Takumar</a> 50mm F1.4</i></li> <li>center: an identical lens that had the same amount of yellowing, but was treated with a <a href="/wiki/File:LED_black_light_flashlight.jpg" title="File:LED black light flashlight.jpg">LED-based UV-emitting flashlight</a> for several days until the yellowing almost disappeared.</li> <li>right: an <i>Auto Yashinon-DS 50mm f1.9</i> that showed no signs of yellowing for comparison</li></ul> Please note: Not all lenses that appear yellow do so because of “yellowing” – many lens coatings do look golden/yellow/brown as well.</div></td> </tr> <tr> <td id="fileinfotpl_date" class="fileinfo-paramfield" lang="en">Date</td> <td lang="en"> <time class="dtstart" datetime="2015-01-04" lang="en" dir="ltr" style="white-space:nowrap">4 January 2015</time></td> </tr> <tr> <td id="fileinfotpl_src" class="fileinfo-paramfield" lang="en">Source</td> <td> <span class="int-own-work" lang="en">Own work</span></td> </tr> <tr> <td id="fileinfotpl_aut" class="fileinfo-paramfield" lang="en">Author</td> <td> <a href="/wiki/User:El_Grafo" title="User:El Grafo">El Grafo</a></td> </tr> </tbody></table> </div> <div class="mw-heading mw-heading2"><h2 id="Licensing">Licensing</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=File:Yellowing_of_thorium_lenses.jpg&action=edit&section=2" title="Edit section: Licensing"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div style="clear:both; margin:0.5em auto; background-color:var(--background-color-interactive,#eaecf0); color:inherit; border:2px solid var(--border-color-subtle,#c8ccd1); padding:8px; direction:ltr;" class="licensetpl_wrapper"><div class="center" style="font-weight:bold;"><div lang="en" dir="ltr" class="description en" style="display:inline;"><a href="/wiki/User:El_Grafo" title="User:El Grafo">El Grafo</a>, the copyright holder of this work, hereby publishes it under the following license:</div></div> <style data-mw-deduplicate="TemplateStyles:r890281695">.mw-parser-output .responsive-license-cc{clear:both;text-align:center;box-sizing:border-box;width:100%;justify-content:space-around;align-items:center;margin:0.5em auto;color:var(--color-base,#202122);background-color:var(--background-color-neutral-subtle,#f9f9f9);border-width:2px;border-style:solid;border-top-color:var(--border-color-subtle,#e0e0e0);border-right-color:var(--border-color-subtle,#e0e0e0);border-bottom-color:var(--border-color-subtle,#e0e0e0);border-left-color:var(--border-color-subtle,#e0e0e0);border-spacing:8px;display:flex}.mw-parser-output .responsive-license-cc div{margin:4px}.mw-parser-output .rlicense-text div{margin:0.5em auto}@media screen and (max-width:640px){.mw-parser-output .responsive-license-cc{flex-flow:column}.mw-parser-output .rlicense-text{order:1}}</style><div class="responsive-license-cc layouttemplate licensetpl" dir="ltr" lang="en"><div class="rlicense-icons"><span class="skin-invert" typeof="mw:File"><span title="w:en:Creative Commons"><img alt="w:en:Creative Commons" src="https://upload.wikimedia.org/wikipedia/commons/thumb/7/79/CC_some_rights_reserved.svg/90px-CC_some_rights_reserved.svg.png" decoding="async" width="90" height="36" class="mw-file-element" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/7/79/CC_some_rights_reserved.svg/135px-CC_some_rights_reserved.svg.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/7/79/CC_some_rights_reserved.svg/180px-CC_some_rights_reserved.svg.png 2x" data-file-width="744" data-file-height="300" /></span></span><br /> <span class="skin-invert" typeof="mw:File"><span title="attribution"><img alt="attribution" src="https://upload.wikimedia.org/wikipedia/commons/thumb/1/11/Cc-by_new_white.svg/24px-Cc-by_new_white.svg.png" decoding="async" width="24" height="24" class="mw-file-element" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/1/11/Cc-by_new_white.svg/36px-Cc-by_new_white.svg.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/1/11/Cc-by_new_white.svg/48px-Cc-by_new_white.svg.png 2x" data-file-width="64" data-file-height="64" /></span></span> <span class="skin-invert" typeof="mw:File"><span title="share alike"><img alt="share alike" src="https://upload.wikimedia.org/wikipedia/commons/thumb/d/df/Cc-sa_white.svg/24px-Cc-sa_white.svg.png" decoding="async" width="24" height="24" class="mw-file-element" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/d/df/Cc-sa_white.svg/36px-Cc-sa_white.svg.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/d/df/Cc-sa_white.svg/48px-Cc-sa_white.svg.png 2x" data-file-width="64" data-file-height="64" /></span></span></div><div class="rlicense-text"><div class="rlicense-declaration">This file is licensed under the <a href="https://en.wikipedia.org/wiki/en:Creative_Commons" class="extiw" title="w:en:Creative Commons">Creative Commons</a> <a href="//creativecommons.org/licenses/by-sa/4.0/deed.en" class="extiw" title="creativecommons:by-sa/4.0/deed.en">Attribution-Share Alike 4.0 International</a> license.</div><div class="rlicense-attr" style="font-weight: bold;">Attribution: <span style="font-size:larger;" class="licensetpl_attr">© <a href="/wiki/User:El_Grafo" title="User:El Grafo">El Grafo</a> / <a rel="nofollow" class="external text" href="https://creativecommons.org/licenses/by-sa/4.0/legalcode">CC-BY-SA-4.0</a></span></div><div class="rlicense-desc" style="text-align:start;" lang="en"> <dl><dd>You are free: <ul><li><b>to share</b> – to copy, distribute and transmit the work</li> <li><b>to remix</b> – to adapt the work</li></ul></dd> <dd>Under the following conditions: <ul><li><b>attribution</b> – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.</li> <li><b>share alike</b> – If you remix, transform, or build upon the material, you must distribute your contributions under the <a href="https://creativecommons.org/share-your-work/licensing-considerations/compatible-licenses" class="extiw" title="ccorg:share-your-work/licensing-considerations/compatible-licenses">same or compatible license</a> as the original.</li></ul></dd></dl></div><span class="licensetpl_link" style="display:none;">https://creativecommons.org/licenses/by-sa/4.0</span><span class="licensetpl_short" style="display:none;">CC BY-SA 4.0 </span><span class="licensetpl_long" style="display:none;">Creative Commons Attribution-Share Alike 4.0 </span><span class="licensetpl_link_req" style="display:none;">true</span><span class="licensetpl_attr_req" style="display:none;">true</span></div></div></div> <div class="mw-heading mw-heading2"><h2 id="Assessment"><span id="Assessment"></span>Assessment</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=File:Yellowing_of_thorium_lenses.jpg&action=edit&section=3" title="Edit section: Assessment"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div id="assessments" dir="ltr" lang="en"> <table cellspacing="0" cellpadding="0" style="margin:0.5em auto; width:100%"> <tbody><tr> <td> <table style="clear:both;margin:0em auto;width:100%; box-sizing: border-box; border:2px solid var(--border-color-warning,#e5d4a1);background-color:var(--background-color-warning-subtle,#FAF5E6); color: inherit;" dir="ltr"><tbody><tr><td> <table style="width:100%;"> <tbody><tr> <td style="width:40px;text-align:center;" rowspan="2"> <p><span typeof="mw:File"><span title="Featured picture"><img alt="Featured picture" src="https://upload.wikimedia.org/wikipedia/commons/thumb/e/e7/Cscr-featured.svg/40px-Cscr-featured.svg.png" decoding="async" width="40" height="38" class="mw-file-element" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/e/e7/Cscr-featured.svg/60px-Cscr-featured.svg.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/e/e7/Cscr-featured.svg/80px-Cscr-featured.svg.png 2x" data-file-width="466" data-file-height="443" /></span></span> </p> </td> <td> </td> <td style="width:30px;text-align:center;" rowspan="2"> <p><span typeof="mw:File"><span title="Wikimedia Commons"><img alt="Wikimedia Commons" src="https://upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/30px-Commons-logo.svg.png" decoding="async" width="30" height="40" class="mw-file-element" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/45px-Commons-logo.svg.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/60px-Commons-logo.svg.png 2x" data-file-width="1024" data-file-height="1376" /></span></span><span typeof="mw:File"><span title="Wikipedia"><img alt="Wikipedia" src="https://upload.wikimedia.org/wikipedia/commons/thumb/8/80/Wikipedia-logo-v2.svg/30px-Wikipedia-logo-v2.svg.png" decoding="async" width="30" height="27" class="mw-file-element" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/8/80/Wikipedia-logo-v2.svg/45px-Wikipedia-logo-v2.svg.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/8/80/Wikipedia-logo-v2.svg/60px-Wikipedia-logo-v2.svg.png 2x" data-file-width="103" data-file-height="94" /></span></span> </p> </td></tr> <tr> <td>This is a <b>featured picture</b> on Wikimedia Commons (<a href="/wiki/Commons:Featured_pictures" title="Commons:Featured pictures">Featured pictures</a>) and is considered one of the finest images. See its nomination <a href="/wiki/Commons:Featured_picture_candidates/File:Yellowing_of_thorium_lenses.jpg" title="Commons:Featured picture candidates/File:Yellowing of thorium lenses.jpg">here</a>.<br /><hr /><span typeof="mw:File"><span><img src="https://upload.wikimedia.org/wikipedia/commons/thumb/e/e7/Cscr-featured.svg/20px-Cscr-featured.svg.png" decoding="async" width="20" height="19" class="mw-file-element" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/e/e7/Cscr-featured.svg/30px-Cscr-featured.svg.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/e/e7/Cscr-featured.svg/40px-Cscr-featured.svg.png 2x" data-file-width="466" data-file-height="443" /></span></span> This is a <b>featured picture</b> on the English language Wikipedia (<a href="https://en.wikipedia.org/wiki/en:WP:Featured_pictures" class="extiw" title="w:en:WP:Featured pictures">Featured pictures</a>) and is considered one of the finest images. See its nomination <a href="https://en.wikipedia.org/wiki/en:WP:Featured_picture_candidates/Yellowing_of_thorium_lenses" class="extiw" title="w:en:WP:Featured picture candidates/Yellowing of thorium lenses">here</a>.<br /> <hr /> <p>If you have an image of similar quality that can be published under a <a href="/wiki/Commons:Licensing" title="Commons:Licensing">suitable copyright license</a>, be sure to <a href="/wiki/Special:Upload" title="Special:Upload">upload</a> it, <a href="/wiki/Commons:Copyright_tags" title="Commons:Copyright tags">tag</a> it, and <a href="/wiki/Commons:Featured_picture_candidates" title="Commons:Featured picture candidates">nominate it</a>.<br /> </p> </td></tr></tbody></table> </td></tr></tbody></table> </td></tr></tbody></table> </div> <p class="mw-empty-elt"> </p> <table style="background-color: var(--background-color-warning-subtle, #fdf4d8); color: var(--color-base, #202122); border: 2px solid var(--border-color-warning, #DAA520); border-collapse: separate; border-spacing: 8px; box-sizing: border-box; clear: both; margin: 0.5em auto; width: 100%;" dir="ltr" lang="en"> <tbody><tr> <td style="text-align:center; width:64px;"><span typeof="mw:File"><span title="VI seal"><img alt="VI seal" src="https://upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Valued_image_seal.svg/64px-Valued_image_seal.svg.png" decoding="async" width="64" height="64" class="mw-file-element" srcset="https://upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Valued_image_seal.svg/96px-Valued_image_seal.svg.png 1.5x, https://upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Valued_image_seal.svg/128px-Valued_image_seal.svg.png 2x" data-file-width="208" data-file-height="207" /></span></span> </td> <td><div class="center"><b><a href="/wiki/Commons:Valued_images" title="Commons:Valued images">Valued image</a></b></div><div> <p>This image has been assessed under the <i><a href="/wiki/Commons:Valued_image_criteria" title="Commons:Valued image criteria">valued image criteria</a></i> and is considered <b>the most valued image on Commons</b> within the scope: <b>Yellowing of <a href="/wiki/Category:Takumar_lenses" title="Category:Takumar lenses">Takumar lenses</a></b>. You can see its nomination <a href="/wiki/Commons:Valued_image_candidates/Yellowing_of_thorium_lenses.jpg" title="Commons:Valued image candidates/Yellowing of thorium lenses.jpg">here</a>. </p> </div> </td></tr></tbody></table>    </div></div><h2 id="filehistory">File history</h2> <div id="mw-imagepage-section-filehistory"> <p>Click on a date/time to view the file as it appeared at that time. </p> <table class="wikitable filehistory"> <tr><th></th><th>Date/Time</th><th>Thumbnail</th><th>Dimensions</th><th>User</th><th>Comment</th></tr> <tr><td>current</td><td class="filehistory-selected" style="white-space: nowrap;"><a href="https://upload.wikimedia.org/wikipedia/commons/4/48/Yellowing_of_thorium_lenses.jpg">13:09, 22 February 2015</a></td><td><a href="https://upload.wikimedia.org/wikipedia/commons/4/48/Yellowing_of_thorium_lenses.jpg"><img alt="Thumbnail for version as of 13:09, 22 February 2015" src="https://upload.wikimedia.org/wikipedia/commons/thumb/4/48/Yellowing_of_thorium_lenses.jpg/120px-Yellowing_of_thorium_lenses.jpg?20150222130957" decoding="async" loading="lazy" width="120" height="43" data-file-width="4734" data-file-height="1702" /></a></td><td>4,734 × 1,702 <span style="white-space: nowrap;">(4.32 MB)</span></td><td><a href="/wiki/User:El_Grafo" class="mw-userlink" title="User:El Grafo"><bdi>El Grafo</bdi></a><span style="white-space: nowrap;"> <span class="mw-usertoollinks">(<a href="/wiki/User_talk:El_Grafo" class="mw-usertoollinks-talk" title="User talk:El Grafo">talk</a> | <a href="/wiki/Special:Contributions/El_Grafo" class="mw-usertoollinks-contribs" title="Special:Contributions/El Grafo">contribs</a>)</span></span></td><td dir="ltr">minor background fix</td></tr> <tr><td></td><td style="white-space: nowrap;"><a href="https://upload.wikimedia.org/wikipedia/commons/archive/4/48/20150222130955%21Yellowing_of_thorium_lenses.jpg">17:20, 13 January 2015</a></td><td><a href="https://upload.wikimedia.org/wikipedia/commons/archive/4/48/20150222130955%21Yellowing_of_thorium_lenses.jpg"><img alt="Thumbnail for version as of 17:20, 13 January 2015" src="https://upload.wikimedia.org/wikipedia/commons/thumb/archive/4/48/20150222130955%21Yellowing_of_thorium_lenses.jpg/120px-Yellowing_of_thorium_lenses.jpg" decoding="async" loading="lazy" width="120" height="43" data-file-width="4734" data-file-height="1702" /></a></td><td>4,734 × 1,702 <span style="white-space: nowrap;">(4.22 MB)</span></td><td><a href="/wiki/User:El_Grafo" class="mw-userlink" title="User:El Grafo"><bdi>El Grafo</bdi></a><span style="white-space: nowrap;"> <span class="mw-usertoollinks">(<a href="/wiki/User_talk:El_Grafo" class="mw-usertoollinks-talk" title="User talk:El Grafo">talk</a> | <a href="/wiki/Special:Contributions/El_Grafo" class="mw-usertoollinks-contribs" title="Special:Contributions/El Grafo">contribs</a>)</span></span></td><td dir="ltr">move that yashinon a bit to the right</td></tr> <tr><td></td><td style="white-space: nowrap;"><a href="https://upload.wikimedia.org/wikipedia/commons/archive/4/48/20150113172052%21Yellowing_of_thorium_lenses.jpg">16:24, 13 January 2015</a></td><td><a href="https://upload.wikimedia.org/wikipedia/commons/archive/4/48/20150113172052%21Yellowing_of_thorium_lenses.jpg"><img alt="Thumbnail for version as of 16:24, 13 January 2015" src="https://upload.wikimedia.org/wikipedia/commons/thumb/archive/4/48/20150113172052%21Yellowing_of_thorium_lenses.jpg/120px-Yellowing_of_thorium_lenses.jpg" decoding="async" loading="lazy" width="120" height="44" data-file-width="4676" data-file-height="1702" /></a></td><td>4,676 × 1,702 <span style="white-space: nowrap;">(5.75 MB)</span></td><td><a href="/wiki/User:El_Grafo" class="mw-userlink" title="User:El Grafo"><bdi>El Grafo</bdi></a><span style="white-space: nowrap;"> <span class="mw-usertoollinks">(<a href="/wiki/User_talk:El_Grafo" class="mw-usertoollinks-talk" title="User talk:El Grafo">talk</a> | <a href="/wiki/Special:Contributions/El_Grafo" class="mw-usertoollinks-contribs" title="Special:Contributions/El Grafo">contribs</a>)</span></span></td><td dir="ltr">VicuñaUploader 1.20</td></tr> </table> </div> <div class="mw-imagepage-upload-links"><p id="mw-imagepage-upload-disallowed">You cannot overwrite this file.</p></div><h2 id="filelinks">File usage on Commons</h2> <div id='mw-imagepage-section-linkstoimage'> <p>The following 15 pages use this file: </p><ul class="mw-imagepage-linkstoimage"> <li class="mw-imagepage-linkstoimage-ns2"><a href="/wiki/User:El_Grafo" title="User:El Grafo">User:El Grafo</a></li> <li class="mw-imagepage-linkstoimage-ns2"><a href="/wiki/User:El_Grafo/gallery" title="User:El Grafo/gallery">User:El Grafo/gallery</a></li> <li class="mw-imagepage-linkstoimage-ns2"><a href="/wiki/User:Zyephyrus/2016" title="User:Zyephyrus/2016">User:Zyephyrus/2016</a></li> <li class="mw-imagepage-linkstoimage-ns3"><a href="/wiki/User_talk:El_Grafo/Archive_3" title="User talk:El Grafo/Archive 3">User talk:El Grafo/Archive 3</a></li> <li class="mw-imagepage-linkstoimage-ns3"><a href="/wiki/User_talk:Pine/Archive_2" title="User talk:Pine/Archive 2">User talk:Pine/Archive 2</a></li> <li class="mw-imagepage-linkstoimage-ns4"><a href="/wiki/Commons:Featured_picture_candidates/File:Yellowing_of_thorium_lenses.jpg" title="Commons:Featured picture candidates/File:Yellowing of thorium lenses.jpg">Commons:Featured picture candidates/File:Yellowing of thorium lenses.jpg</a></li> <li class="mw-imagepage-linkstoimage-ns4"><a href="/wiki/Commons:Featured_pictures/Objects" title="Commons:Featured pictures/Objects">Commons:Featured pictures/Objects</a></li> <li class="mw-imagepage-linkstoimage-ns4"><a href="/wiki/Commons:Featured_pictures/chronological/2016-A" title="Commons:Featured pictures/chronological/2016-A">Commons:Featured pictures/chronological/2016-A</a></li> <li class="mw-imagepage-linkstoimage-ns4"><a href="/wiki/Commons:Picture_of_the_Year/2016/Candidates" title="Commons:Picture of the Year/2016/Candidates">Commons:Picture of the Year/2016/Candidates</a></li> <li class="mw-imagepage-linkstoimage-ns4"><a href="/wiki/Commons:Picture_of_the_Year/2016/R1/Gallery/2016-A" title="Commons:Picture of the Year/2016/R1/Gallery/2016-A">Commons:Picture of the Year/2016/R1/Gallery/2016-A</a></li> <li class="mw-imagepage-linkstoimage-ns4"><a href="/wiki/Commons:Picture_of_the_Year/2016/R1/Gallery/ALL" title="Commons:Picture of the Year/2016/R1/Gallery/ALL">Commons:Picture of the Year/2016/R1/Gallery/ALL</a></li> <li class="mw-imagepage-linkstoimage-ns4"><a href="/wiki/Commons:Picture_of_the_Year/2016/R1/Gallery/M01" title="Commons:Picture of the Year/2016/R1/Gallery/M01">Commons:Picture of the Year/2016/R1/Gallery/M01</a></li> <li class="mw-imagepage-linkstoimage-ns4"><a href="/wiki/Commons:Picture_of_the_Year/2016/R1/Gallery/Objects,_shells_and_miscellaneous" title="Commons:Picture of the Year/2016/R1/Gallery/Objects, shells and miscellaneous">Commons:Picture of the Year/2016/R1/Gallery/Objects, shells and miscellaneous</a></li> <li class="mw-imagepage-linkstoimage-ns4"><a href="/wiki/Commons:Picture_of_the_Year/2016/R1/v/Yellowing_of_thorium_lenses.jpg" title="Commons:Picture of the Year/2016/R1/v/Yellowing of thorium lenses.jpg">Commons:Picture of the Year/2016/R1/v/Yellowing of thorium lenses.jpg</a></li> <li class="mw-imagepage-linkstoimage-ns4"><a href="/wiki/Commons:Valued_image_candidates/Yellowing_of_thorium_lenses.jpg" title="Commons:Valued image candidates/Yellowing of thorium lenses.jpg">Commons:Valued image candidates/Yellowing of thorium lenses.jpg</a></li> </ul> </div> <h2 id="globalusage">File usage on other wikis</h2> <div id="mw-imagepage-section-globalusage"><p>The following other wikis use this file: </p><ul> <li class='mw-gu-onwiki-de_wikipedia_org'>Usage on de.wikipedia.org <ul> <li><a class="external" href="https://de.wikipedia.org/wiki/Thorium">Thorium</a></li> </ul></li> <li class='mw-gu-onwiki-en_wikipedia_org'>Usage on en.wikipedia.org <ul> <li><a class="external" href="https://en.wikipedia.org/wiki/Thorium">Thorium</a></li> <li><a class="external" href="https://en.wikipedia.org/wiki/Thorium_dioxide">Thorium dioxide</a></li> <li><a class="external" href="https://en.wikipedia.org/wiki/User_talk:El_Grafo">User talk:El Grafo</a></li> <li><a class="external" href="https://en.wikipedia.org/wiki/Wikipedia:Featured_pictures/Photographic_techniques,_terms,_and_equipment">Wikipedia:Featured pictures/Photographic techniques, terms, and equipment</a></li> <li><a class="external" href="https://en.wikipedia.org/wiki/Wikipedia:Featured_pictures_thumbs/59">Wikipedia:Featured pictures thumbs/59</a></li> <li><a class="external" href="https://en.wikipedia.org/wiki/Wikipedia:Featured_picture_candidates/January-2016">Wikipedia:Featured picture candidates/January-2016</a></li> <li><a class="external" href="https://en.wikipedia.org/wiki/Wikipedia:Featured_picture_candidates/Yellowing_of_thorium_lenses">Wikipedia:Featured picture candidates/Yellowing of thorium lenses</a></li> <li><a class="external" href="https://en.wikipedia.org/wiki/Wikipedia:Wikipedia_Signpost/2016-02-10/Featured_content">Wikipedia:Wikipedia Signpost/2016-02-10/Featured content</a></li> <li><a class="external" href="https://en.wikipedia.org/wiki/Wikipedia:Wikipedia_Signpost/Single/2016-02-10">Wikipedia:Wikipedia Signpost/Single/2016-02-10</a></li> <li><a class="external" href="https://en.wikipedia.org/wiki/User_talk:Pine/Archive_10">User talk:Pine/Archive 10</a></li> <li><a class="external" href="https://en.wikipedia.org/wiki/User:Amakuru/POTD_3">User:Amakuru/POTD 3</a></li> <li><a class="external" href="https://en.wikipedia.org/wiki/Wikipedia:Picture_of_the_day/May_2019">Wikipedia:Picture of the day/May 2019</a></li> <li><a class="external" href="https://en.wikipedia.org/wiki/Template:POTD/2019-05-01">Template:POTD/2019-05-01</a></li> <li><a class="external" href="https://en.wikipedia.org/wiki/Wikipedia:Main_Page_history/2019_May_1">Wikipedia:Main Page history/2019 May 1</a></li> <li><a class="external" href="https://en.wikipedia.org/wiki/Portal:The_arts/Recognized_content">Portal:The arts/Recognized content</a></li> </ul></li> <li class='mw-gu-onwiki-es_wikipedia_org'>Usage on es.wikipedia.org <ul> <li><a class="external" href="https://es.wikipedia.org/wiki/Di%C3%B3xido_de_torio">Dióxido de torio</a></li> </ul></li> <li class='mw-gu-onwiki-fi_wikipedia_org'>Usage on fi.wikipedia.org <ul> <li><a class="external" href="https://fi.wikipedia.org/wiki/Torium">Torium</a></li> </ul></li> <li class='mw-gu-onwiki-frr_wikipedia_org'>Usage on frr.wikipedia.org <ul> <li><a class="external" href="https://frr.wikipedia.org/wiki/Toorium">Toorium</a></li> </ul></li> <li class='mw-gu-onwiki-fr_wikipedia_org'>Usage on fr.wikipedia.org <ul> <li><a class="external" href="https://fr.wikipedia.org/wiki/Thorium">Thorium</a></li> <li><a class="external" href="https://fr.wikipedia.org/wiki/Wikip%C3%A9dia:RAW/2016-02-26">Wikipédia:RAW/2016-02-26</a></li> </ul></li> <li class='mw-gu-onwiki-fr_wikibooks_org'>Usage on fr.wikibooks.org <ul> <li><a class="external" href="https://fr.wikibooks.org/wiki/Photographie/Optique/Mat%C3%A9riaux_pour_l%27optique">Photographie/Optique/Matériaux pour l'optique</a></li> </ul></li> <li class='mw-gu-onwiki-id_wikipedia_org'>Usage on id.wikipedia.org <ul> <li><a class="external" href="https://id.wikipedia.org/wiki/Torium">Torium</a></li> <li><a class="external" href="https://id.wikipedia.org/wiki/Torium_dioksida">Torium dioksida</a></li> </ul></li> <li class='mw-gu-onwiki-mg_wikipedia_org'>Usage on mg.wikipedia.org <ul> <li><a class="external" href="https://mg.wikipedia.org/wiki/Wikipedia:Sary/*/Herinandro_41_2022">Wikipedia:Sary/*/Herinandro 41 2022</a></li> <li><a class="external" href="https://mg.wikipedia.org/wiki/Wikipedia:Sary/*/taona_2029">Wikipedia:Sary/*/taona 2029</a></li> <li><a class="external" href="https://mg.wikipedia.org/wiki/Wikipedia:Sary/Sarin%27ny_anio/19_Septambra_2029">Wikipedia:Sary/Sarin'ny anio/19 Septambra 2029</a></li> </ul></li> <li class='mw-gu-onwiki-ru_wikipedia_org'>Usage on ru.wikipedia.org <ul> <li><a class="external" href="https://ru.wikipedia.org/wiki/%D0%9E%D0%BA%D1%81%D0%B8%D0%B4_%D1%82%D0%BE%D1%80%D0%B8%D1%8F(IV)">Оксид тория(IV)</a></li> </ul></li> <li class='mw-gu-onwiki-sd_wikipedia_org'>Usage on sd.wikipedia.org <ul> <li><a class="external" href="https://sd.wikipedia.org/wiki/%D9%88%DA%AA%D9%8A%D9%BE%D9%8A%DA%8A%D9%8A%D8%A7:%DA%86%D9%88%D9%86%DA%8A_%D8%AA%D8%B5%D9%88%D9%8A%D8%B1%D9%88%D9%86">وڪيپيڊيا:چونڊ تصويرون</a></li> </ul></li> <li class='mw-gu-onwiki-ta_wikipedia_org'>Usage on ta.wikipedia.org <ul> <li><a class="external" href="https://ta.wikipedia.org/wiki/%E0%AE%A4%E0%AF%8B%E0%AE%B0%E0%AE%BF%E0%AE%AF%E0%AE%AE%E0%AF%8D_%E0%AE%9F%E0%AF%88%E0%AE%AF%E0%AE%BE%E0%AE%95%E0%AF%8D%E0%AE%9A%E0%AF%88%E0%AE%9F%E0%AF%81">தோரியம் டையாக்சைடு</a></li> </ul></li> <li class='mw-gu-onwiki-tr_wikipedia_org'>Usage on tr.wikipedia.org <ul> <li><a class="external" href="https://tr.wikipedia.org/wiki/Toryum">Toryum</a></li> </ul></li> <li class='mw-gu-onwiki-ur_wikipedia_org'>Usage on ur.wikipedia.org <ul> <li><a class="external" href="https://ur.wikipedia.org/wiki/%D9%88%DB%8C%DA%A9%DB%8C%D9%BE%DB%8C%DA%88%DB%8C%D8%A7:%D9%85%D9%86%D8%AA%D8%AE%D8%A8_%D8%AA%D8%B5%D8%A7%D9%88%DB%8C%D8%B1">ویکیپیڈیا:منتخب تصاویر</a></li> </ul></li> <li class='mw-gu-onwiki-www_wikidata_org'>Usage on www.wikidata.org <ul> <li><a class="external" href="https://www.wikidata.org/wiki/Q420634">Q420634</a></li> </ul></li> <li class='mw-gu-onwiki-zh_wikipedia_org'>Usage on zh.wikipedia.org <ul> <li><a class="external" href="https://zh.wikipedia.org/wiki/%E9%92%8D">钍</a></li> </ul></li> </ul> </div><h2 id="metadata">Metadata</h2> <div class="mw-content-ltr mw-imagepage-section-metadata" lang="en" dir="ltr"><p>This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.</p><table id="mw_metadata" class="mw_metadata collapsed"> <tbody><tr class="exif-make"><th>Camera manufacturer</th><td><a href="https://en.wikipedia.org/wiki/PENTAX" class="extiw" title="w:PENTAX">PENTAX </a></td></tr><tr class="exif-model"><th>Camera model</th><td><a href="https://en.wikipedia.org/wiki/PENTAX_K-5" class="extiw" title="en:PENTAX K-5">PENTAX K-5 </a></td></tr><tr class="exif-artist"><th>Author</th><td>El Grafo</td></tr><tr class="exif-copyright"><th>Copyright holder</th><td>El Grafo (CC-BY-SA 4.0)</td></tr><tr class="exif-exposuretime"><th>Exposure time</th><td>1/125 sec (0.008)</td></tr><tr class="exif-fnumber"><th><a href="https://en.wikipedia.org/wiki/F-number" class="extiw" title="wikipedia:F-number">F-number</a></th><td>f/8</td></tr><tr class="exif-isospeedratings"><th>ISO speed rating</th><td>100</td></tr><tr class="exif-datetimeoriginal"><th>Date and time of data generation</th><td>13:53, 4 January 2015</td></tr><tr class="exif-focallength"><th>Lens focal length</th><td>100 mm</td></tr><tr class="exif-xresolution mw-metadata-collapsible"><th>Horizontal resolution</th><td>300 dpi</td></tr><tr class="exif-yresolution mw-metadata-collapsible"><th>Vertical resolution</th><td>300 dpi</td></tr><tr class="exif-software mw-metadata-collapsible"><th>Software used</th><td><a href="https://en.wikipedia.org/wiki/GIMP_2.8.10" class="extiw" title="w:GIMP 2.8.10">GIMP 2.8.10</a></td></tr><tr class="exif-datetime mw-metadata-collapsible"><th>File change date and time</th><td>14:07, 22 February 2015</td></tr><tr class="exif-exposureprogram mw-metadata-collapsible"><th>Exposure Program</th><td>Manual</td></tr><tr class="exif-exifversion mw-metadata-collapsible"><th>Exif version</th><td>2.2</td></tr><tr class="exif-datetimedigitized mw-metadata-collapsible"><th>Date and time of digitizing</th><td>13:53, 4 January 2015</td></tr><tr class="exif-exposurebiasvalue mw-metadata-collapsible"><th>APEX exposure bias</th><td>0</td></tr><tr class="exif-meteringmode mw-metadata-collapsible"><th>Metering mode</th><td>Pattern</td></tr><tr class="exif-flash mw-metadata-collapsible"><th>Flash</th><td>Flash did not fire, compulsory flash suppression</td></tr><tr class="exif-flashpixversion mw-metadata-collapsible"><th>Supported Flashpix version</th><td>1</td></tr><tr class="exif-colorspace mw-metadata-collapsible"><th>Color space</th><td>Uncalibrated</td></tr><tr class="exif-sensingmethod mw-metadata-collapsible"><th>Sensing method</th><td>One-chip color area sensor</td></tr><tr class="exif-customrendered mw-metadata-collapsible"><th>Custom image processing</th><td>Normal process</td></tr><tr class="exif-exposuremode mw-metadata-collapsible"><th>Exposure mode</th><td>Manual exposure</td></tr><tr class="exif-whitebalance mw-metadata-collapsible"><th>White balance</th><td>Auto white balance</td></tr><tr class="exif-focallengthin35mmfilm mw-metadata-collapsible"><th>Focal length in 35 mm film</th><td>150 mm</td></tr><tr class="exif-scenecapturetype mw-metadata-collapsible"><th>Scene capture type</th><td>Standard</td></tr><tr class="exif-contrast mw-metadata-collapsible"><th>Contrast</th><td>Normal</td></tr><tr class="exif-saturation mw-metadata-collapsible"><th>Saturation</th><td>Normal</td></tr><tr class="exif-sharpness mw-metadata-collapsible"><th>Sharpness</th><td>Normal</td></tr><tr class="exif-subjectdistancerange mw-metadata-collapsible"><th>Subject distance range</th><td>Close view</td></tr><tr class="exif-gpsversionid mw-metadata-collapsible"><th>GPS tag version</th><td>0.0.3.2</td></tr></tbody></table> </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?useformat=desktop&type=1x1&usesul3=0" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript></div><div role='tabpanel' aria-hidden='true' id='ooui-php-5' class='wbmi-tab oo-ui-layout oo-ui-panelLayout oo-ui-panelLayout-scrollable oo-ui-tabPanelLayout oo-ui-element-hidden' data-ooui='{"_":"OO.ui.TabPanelLayout","name":"statements","label":"Structured data","scrollable":true,"expanded":false,"classes":["wbmi-tab"]}'><h2 class="wbmi-structured-data-header">Structured data</h2><div id='P180' data-property='P180' data-statements='[]' data-formatvalue='[]' class='wbmi-entityview-statementsGroup wbmi-entityview-statementsGroup-P180 oo-ui-layout oo-ui-panelLayout oo-ui-panelLayout-framed'><div class='wbmi-statements-widget'><div class='wbmi-statement-header'><div class='wbmi-entity-data'><div class='wbmi-entity-title'><h3 class='wbmi-statements-title'>Items portrayed in this file</h3><h4 class='wbmi-entity-label'><bdi><a target="_blank" title="d:Special:EntityPage/P180" href="https://www.wikidata.org/wiki/Special:EntityPage/P180">depicts</a></bdi></h4></div></div></div><div class='wbmi-content-items-group'></div></div></div><div id='P170' data-property='P170' data-statements='[{"mainsnak":{"snaktype":"somevalue","property":"P170","hash":"d3550e860f988c6675fff913440993f58f5c40c5"},"type":"statement","qualifiers":{"P2093":[{"snaktype":"value","property":"P2093","hash":"61b745fcd22c64cd595c8595680ba221b8d1c8ad","datavalue":{"value":"El Grafo","type":"string"}}],"P2699":[{"snaktype":"value","property":"P2699","hash":"c7ff8253cf40f53af402b3a4c6fb173fb707b4e9","datavalue":{"value":"https:\/\/commons.wikimedia.org\/wiki\/user:El_Grafo","type":"string"}}],"P3831":[{"snaktype":"value","property":"P3831","hash":"c5e04952fd00011abf931be1b701f93d9e6fa5d7","datavalue":{"value":{"entity-type":"item","numeric-id":33231,"id":"Q33231"},"type":"wikibase-entityid"}}],"P4174":[{"snaktype":"value","property":"P4174","hash":"67f6f8578ea3ec553e15018bcbca26318c611eab","datavalue":{"value":"El Grafo","type":"string"}}]},"qualifiers-order":["P2093","P2699","P3831","P4174"],"id":"M37842651$6EFF42D4-81BA-473D-9AB3-3508208E0C2C","rank":"normal"}]' data-formatvalue='{"{\"value\":{\"entity-type\":\"property\",\"numeric-id\":170,\"id\":\"P170\"},\"type\":\"wikibase-entityid\"}":{"text\/html":{"en":{"":"<a target=\"_blank\" title=\"d:Special:EntityPage\/P170\" href=\"https:\/\/www.wikidata.org\/wiki\/Special:EntityPage\/P170\">creator<\/a>"}},"text\/plain":{"en":{"":"creator"}}},"{\"value\":{\"entity-type\":\"property\",\"numeric-id\":2093,\"id\":\"P2093\"},\"type\":\"wikibase-entityid\"}":{"text\/html":{"en":{"":"<a target=\"_blank\" title=\"d:Special:EntityPage\/P2093\" href=\"https:\/\/www.wikidata.org\/wiki\/Special:EntityPage\/P2093\">author name string<\/a>"}},"text\/plain":{"en":{"":"author name string"}}},"{\"value\":\"El Grafo\",\"type\":\"string\"}":{"text\/html":{"en":{"P2093":"El Grafo","P4174":"<a target=\"_blank\" class=\"wb-external-id external\" href=\"https:\/\/www.wikidata.org\/wiki\/Special:CentralAuth?target=El%20Grafo\" rel=\"nofollow\">El Grafo<\/a>"}},"text\/plain":{"en":{"P2093":"El Grafo","P4174":"El Grafo"}}},"{\"value\":{\"entity-type\":\"property\",\"numeric-id\":2699,\"id\":\"P2699\"},\"type\":\"wikibase-entityid\"}":{"text\/html":{"en":{"":"<a target=\"_blank\" title=\"d:Special:EntityPage\/P2699\" href=\"https:\/\/www.wikidata.org\/wiki\/Special:EntityPage\/P2699\">URL<\/a>"}},"text\/plain":{"en":{"":"URL"}}},"{\"value\":\"https:\\\/\\\/commons.wikimedia.org\\\/wiki\\\/user:El_Grafo\",\"type\":\"string\"}":{"text\/html":{"en":{"P2699":"<a target=\"_blank\" rel=\"nofollow\" class=\"external free\" href=\"https:\/\/commons.wikimedia.org\/wiki\/user:El_Grafo\">https:\/\/commons.wikimedia.org\/wiki\/user:El_Grafo<\/a>"}},"text\/plain":{"en":{"P2699":"https:\/\/commons.wikimedia.org\/wiki\/user:El_Grafo"}}},"{\"value\":{\"entity-type\":\"property\",\"numeric-id\":3831,\"id\":\"P3831\"},\"type\":\"wikibase-entityid\"}":{"text\/html":{"en":{"":"<a target=\"_blank\" title=\"d:Special:EntityPage\/P3831\" href=\"https:\/\/www.wikidata.org\/wiki\/Special:EntityPage\/P3831\">object of statement has role<\/a>"}},"text\/plain":{"en":{"":"object of statement has role"}}},"{\"value\":{\"entity-type\":\"item\",\"numeric-id\":33231,\"id\":\"Q33231\"},\"type\":\"wikibase-entityid\"}":{"text\/html":{"en":{"P3831":"<a target=\"_blank\" title=\"d:Special:EntityPage\/Q33231\" href=\"https:\/\/www.wikidata.org\/wiki\/Special:EntityPage\/Q33231\">photographer<\/a>"}},"text\/plain":{"en":{"P3831":"photographer"}}},"{\"value\":{\"entity-type\":\"property\",\"numeric-id\":4174,\"id\":\"P4174\"},\"type\":\"wikibase-entityid\"}":{"text\/html":{"en":{"":"<a target=\"_blank\" title=\"d:Special:EntityPage\/P4174\" href=\"https:\/\/www.wikidata.org\/wiki\/Special:EntityPage\/P4174\">Wikimedia username<\/a>"}},"text\/plain":{"en":{"":"Wikimedia username"}}}}' class='wbmi-entityview-statementsGroup wbmi-entityview-statementsGroup-P170 oo-ui-layout oo-ui-panelLayout oo-ui-panelLayout-framed'><div class='wbmi-statements-widget'><div class='wbmi-statement-header'><div class='wbmi-entity-data'><div class='wbmi-entity-title'><h4 class='wbmi-entity-label'><bdi><a target="_blank" title="d:Special:EntityPage/P170" href="https://www.wikidata.org/wiki/Special:EntityPage/P170">creator</a></bdi></h4></div></div></div><div class='wbmi-content-items-group'><div class='wbmi-item wbmi-item-read'><div data-guid='M37842651$6EFF42D4-81BA-473D-9AB3-3508208E0C2C' class='wbmi-item-container'><div class='wbmi-entity-header'><div class='wbmi-entity-data'><div class='wbmi-entity-title'><h4 class='wbmi-entity-label'><bdi>some value</bdi></h4></div></div></div><div class='wbmi-item-qualifiers'><div class='wbmi-snaklist-container'><div class='wbmi-snaklist-content'><div class='wbmi-snak'><div class='wbmi-snak-value'><a target="_blank" title="d:Special:EntityPage/P2093" href="https://www.wikidata.org/wiki/Special:EntityPage/P2093">author name string</a><span class='wbmi-snak-value-separator'>: </span><span class='wbmi-snak-value--value'>El Grafo</span></div></div><div class='wbmi-snak'><div class='wbmi-snak-value'><a target="_blank" title="d:Special:EntityPage/P2699" href="https://www.wikidata.org/wiki/Special:EntityPage/P2699">URL</a><span class='wbmi-snak-value-separator'>: </span><span class='wbmi-snak-value--value'><a target="_blank" rel="nofollow" class="external free" href="https://commons.wikimedia.org/wiki/user:El_Grafo">https://commons.wikimedia.org/wiki/user:El_Grafo</a></span></div></div><div class='wbmi-snak'><div class='wbmi-snak-value'><a target="_blank" title="d:Special:EntityPage/P3831" href="https://www.wikidata.org/wiki/Special:EntityPage/P3831">object of statement has role</a><span class='wbmi-snak-value-separator'>: </span><span class='wbmi-snak-value--value'><a target="_blank" title="d:Special:EntityPage/Q33231" href="https://www.wikidata.org/wiki/Special:EntityPage/Q33231">photographer</a></span></div></div><div class='wbmi-snak'><div class='wbmi-snak-value'><a target="_blank" title="d:Special:EntityPage/P4174" href="https://www.wikidata.org/wiki/Special:EntityPage/P4174">Wikimedia username</a><span class='wbmi-snak-value-separator'>: </span><span class='wbmi-snak-value--value'><a target="_blank" class="wb-external-id external" href="https://www.wikidata.org/wiki/Special:CentralAuth?target=El%20Grafo" rel="nofollow">El Grafo</a></span></div></div></div></div></div></div></div></div></div></div><div id='P6216' data-property='P6216' data-statements='[{"mainsnak":{"snaktype":"value","property":"P6216","hash":"5570347fdc76d2a80732f51ea10ee4b144a084e0","datavalue":{"value":{"entity-type":"item","numeric-id":50423863,"id":"Q50423863"},"type":"wikibase-entityid"}},"type":"statement","id":"M37842651$DE82028C-F887-47F8-BE4C-6C43F70DA65D","rank":"normal"}]' data-formatvalue='{"{\"value\":{\"entity-type\":\"property\",\"numeric-id\":6216,\"id\":\"P6216\"},\"type\":\"wikibase-entityid\"}":{"text\/html":{"en":{"":"<a target=\"_blank\" title=\"d:Special:EntityPage\/P6216\" href=\"https:\/\/www.wikidata.org\/wiki\/Special:EntityPage\/P6216\">copyright status<\/a>"}},"text\/plain":{"en":{"":"copyright status"}}},"{\"value\":{\"entity-type\":\"item\",\"numeric-id\":50423863,\"id\":\"Q50423863\"},\"type\":\"wikibase-entityid\"}":{"text\/html":{"en":{"P6216":"<a target=\"_blank\" title=\"d:Special:EntityPage\/Q50423863\" href=\"https:\/\/www.wikidata.org\/wiki\/Special:EntityPage\/Q50423863\">copyrighted<\/a>"}},"text\/plain":{"en":{"P6216":"copyrighted"}}}}' class='wbmi-entityview-statementsGroup wbmi-entityview-statementsGroup-P6216 oo-ui-layout oo-ui-panelLayout oo-ui-panelLayout-framed'><div class='wbmi-statements-widget'><div class='wbmi-statement-header'><div class='wbmi-entity-data'><div class='wbmi-entity-title'><h4 class='wbmi-entity-label'><bdi><a target="_blank" title="d:Special:EntityPage/P6216" href="https://www.wikidata.org/wiki/Special:EntityPage/P6216">copyright status</a></bdi></h4></div></div></div><div class='wbmi-content-items-group'><div class='wbmi-item wbmi-item-read'><div data-guid='M37842651$DE82028C-F887-47F8-BE4C-6C43F70DA65D' class='wbmi-item-container'><div class='wbmi-entity-header'><div class='wbmi-entity-data'><div class='wbmi-entity-title'><h4 class='wbmi-entity-label'><bdi><a target="_blank" title="d:Special:EntityPage/Q50423863" href="https://www.wikidata.org/wiki/Special:EntityPage/Q50423863">copyrighted</a></bdi></h4></div></div></div></div></div></div></div></div><div id='P275' data-property='P275' data-statements='[{"mainsnak":{"snaktype":"value","property":"P275","hash":"ec6e754c5042e13b53376139e505ebd6708745a4","datavalue":{"value":{"entity-type":"item","numeric-id":18199165,"id":"Q18199165"},"type":"wikibase-entityid"}},"type":"statement","id":"M37842651$6495225F-AF7D-40F7-B747-3CDB06992757","rank":"normal"}]' data-formatvalue='{"{\"value\":{\"entity-type\":\"property\",\"numeric-id\":275,\"id\":\"P275\"},\"type\":\"wikibase-entityid\"}":{"text\/html":{"en":{"":"<a target=\"_blank\" title=\"d:Special:EntityPage\/P275\" href=\"https:\/\/www.wikidata.org\/wiki\/Special:EntityPage\/P275\">copyright license<\/a>"}},"text\/plain":{"en":{"":"copyright license"}}},"{\"value\":{\"entity-type\":\"item\",\"numeric-id\":18199165,\"id\":\"Q18199165\"},\"type\":\"wikibase-entityid\"}":{"text\/html":{"en":{"P275":"<a target=\"_blank\" title=\"d:Special:EntityPage\/Q18199165\" href=\"https:\/\/www.wikidata.org\/wiki\/Special:EntityPage\/Q18199165\">Creative Commons Attribution-ShareAlike 4.0 International<\/a>"}},"text\/plain":{"en":{"P275":"Creative Commons Attribution-ShareAlike 4.0 International"}}}}' class='wbmi-entityview-statementsGroup wbmi-entityview-statementsGroup-P275 oo-ui-layout oo-ui-panelLayout oo-ui-panelLayout-framed'><div class='wbmi-statements-widget'><div class='wbmi-statement-header'><div class='wbmi-entity-data'><div class='wbmi-entity-title'><h4 class='wbmi-entity-label'><bdi><a target="_blank" title="d:Special:EntityPage/P275" href="https://www.wikidata.org/wiki/Special:EntityPage/P275">copyright license</a></bdi></h4></div></div></div><div class='wbmi-content-items-group'><div class='wbmi-item wbmi-item-read'><div data-guid='M37842651$6495225F-AF7D-40F7-B747-3CDB06992757' class='wbmi-item-container'><div class='wbmi-entity-header'><div class='wbmi-entity-data'><div class='wbmi-entity-title'><h4 class='wbmi-entity-label'><bdi><a target="_blank" title="d:Special:EntityPage/Q18199165" href="https://www.wikidata.org/wiki/Special:EntityPage/Q18199165">Creative Commons Attribution-ShareAlike 4.0 International</a></bdi></h4></div></div></div></div></div></div></div></div><div id='P6731' data-property='P6731' data-statements='[{"mainsnak":{"snaktype":"value","property":"P6731","hash":"de52044b40e2199739f8c1dd7556888dad136a25","datavalue":{"value":{"entity-type":"item","numeric-id":63348040,"id":"Q63348040"},"type":"wikibase-entityid"}},"type":"statement","qualifiers":{"P580":[{"snaktype":"value","property":"P580","hash":"9b07a8b1f38c9b981543cde61e2a21b489447df2","datavalue":{"value":{"time":"+2015-01-18T00:00:00Z","timezone":0,"before":0,"after":0,"precision":11,"calendarmodel":"http:\/\/www.wikidata.org\/entity\/Q1985727"},"type":"time"}}]},"qualifiers-order":["P580"],"id":"M37842651$BBC8AB89-1A14-4CDD-8833-FE362F0972CE","rank":"normal"},{"mainsnak":{"snaktype":"value","property":"P6731","hash":"00effd845d313cc188e25302a8712c2d48647171","datavalue":{"value":{"entity-type":"item","numeric-id":63348049,"id":"Q63348049"},"type":"wikibase-entityid"}},"type":"statement","id":"M37842651$7282B795-D942-438B-96FE-03522843894A","rank":"normal"}]' data-formatvalue='{"{\"value\":{\"entity-type\":\"property\",\"numeric-id\":6731,\"id\":\"P6731\"},\"type\":\"wikibase-entityid\"}":{"text\/html":{"en":{"":"<a target=\"_blank\" title=\"d:Special:EntityPage\/P6731\" href=\"https:\/\/www.wikidata.org\/wiki\/Special:EntityPage\/P6731\">Commons quality assessment<\/a>"}},"text\/plain":{"en":{"":"Commons quality assessment"}}},"{\"value\":{\"entity-type\":\"item\",\"numeric-id\":63348040,\"id\":\"Q63348040\"},\"type\":\"wikibase-entityid\"}":{"text\/html":{"en":{"P6731":"<a target=\"_blank\" title=\"d:Special:EntityPage\/Q63348040\" href=\"https:\/\/www.wikidata.org\/wiki\/Special:EntityPage\/Q63348040\">Wikimedia Commons valued image<\/a>"}},"text\/plain":{"en":{"P6731":"Wikimedia Commons valued image"}}},"{\"value\":{\"entity-type\":\"property\",\"numeric-id\":580,\"id\":\"P580\"},\"type\":\"wikibase-entityid\"}":{"text\/html":{"en":{"":"<a target=\"_blank\" title=\"d:Special:EntityPage\/P580\" href=\"https:\/\/www.wikidata.org\/wiki\/Special:EntityPage\/P580\">start time<\/a>"}},"text\/plain":{"en":{"":"start time"}}},"{\"value\":{\"time\":\"+2015-01-18T00:00:00Z\",\"timezone\":0,\"before\":0,\"after\":0,\"precision\":11,\"calendarmodel\":\"http:\\\/\\\/www.wikidata.org\\\/entity\\\/Q1985727\"},\"type\":\"time\"}":{"text\/html":{"en":{"P580":"18 January 2015"}},"text\/plain":{"en":{"P580":"18 January 2015"}}},"{\"value\":{\"entity-type\":\"item\",\"numeric-id\":63348049,\"id\":\"Q63348049\"},\"type\":\"wikibase-entityid\"}":{"text\/html":{"en":{"P6731":"<a target=\"_blank\" title=\"d:Special:EntityPage\/Q63348049\" href=\"https:\/\/www.wikidata.org\/wiki\/Special:EntityPage\/Q63348049\">Wikimedia Commons featured picture<\/a>"}},"text\/plain":{"en":{"P6731":"Wikimedia Commons featured picture"}}}}' class='wbmi-entityview-statementsGroup wbmi-entityview-statementsGroup-P6731 oo-ui-layout oo-ui-panelLayout oo-ui-panelLayout-framed'><div class='wbmi-statements-widget'><div class='wbmi-statement-header'><div class='wbmi-entity-data'><div class='wbmi-entity-title'><h4 class='wbmi-entity-label'><bdi><a target="_blank" title="d:Special:EntityPage/P6731" href="https://www.wikidata.org/wiki/Special:EntityPage/P6731">Commons quality assessment</a></bdi></h4></div></div></div><div class='wbmi-content-items-group'><div class='wbmi-item wbmi-item-read'><div data-guid='M37842651$BBC8AB89-1A14-4CDD-8833-FE362F0972CE' class='wbmi-item-container'><div class='wbmi-entity-header'><div class='wbmi-entity-data'><div class='wbmi-entity-title'><h4 class='wbmi-entity-label'><bdi><a target="_blank" title="d:Special:EntityPage/Q63348040" href="https://www.wikidata.org/wiki/Special:EntityPage/Q63348040">Wikimedia Commons valued image</a></bdi></h4></div></div></div><div class='wbmi-item-qualifiers'><div class='wbmi-snaklist-container'><div class='wbmi-snaklist-content'><div class='wbmi-snak'><div class='wbmi-snak-value'><a target="_blank" title="d:Special:EntityPage/P580" href="https://www.wikidata.org/wiki/Special:EntityPage/P580">start time</a><span class='wbmi-snak-value-separator'>: </span><span class='wbmi-snak-value--value'>18 January 2015</span></div></div></div></div></div></div></div><div class='wbmi-item wbmi-item-read'><div data-guid='M37842651$7282B795-D942-438B-96FE-03522843894A' class='wbmi-item-container'><div class='wbmi-entity-header'><div class='wbmi-entity-data'><div class='wbmi-entity-title'><h4 class='wbmi-entity-label'><bdi><a target="_blank" title="d:Special:EntityPage/Q63348049" href="https://www.wikidata.org/wiki/Special:EntityPage/Q63348049">Wikimedia Commons featured picture</a></bdi></h4></div></div></div></div></div></div></div></div><div id='P571' data-property='P571' data-statements='[{"mainsnak":{"snaktype":"value","property":"P571","hash":"8ac4e695d1357101f579f1b5f89dce69da031a83","datavalue":{"value":{"time":"+2015-01-04T00:00:00Z","timezone":0,"before":0,"after":0,"precision":11,"calendarmodel":"http:\/\/www.wikidata.org\/entity\/Q1985727"},"type":"time"}},"type":"statement","id":"M37842651$25D978ED-F83A-430E-96E6-CB784FE27DDD","rank":"normal"}]' data-formatvalue='{"{\"value\":{\"entity-type\":\"property\",\"numeric-id\":571,\"id\":\"P571\"},\"type\":\"wikibase-entityid\"}":{"text\/html":{"en":{"":"<a target=\"_blank\" title=\"d:Special:EntityPage\/P571\" href=\"https:\/\/www.wikidata.org\/wiki\/Special:EntityPage\/P571\">inception<\/a>"}},"text\/plain":{"en":{"":"inception"}}},"{\"value\":{\"time\":\"+2015-01-04T00:00:00Z\",\"timezone\":0,\"before\":0,\"after\":0,\"precision\":11,\"calendarmodel\":\"http:\\\/\\\/www.wikidata.org\\\/entity\\\/Q1985727\"},\"type\":\"time\"}":{"text\/html":{"en":{"P571":"4 January 2015"}},"text\/plain":{"en":{"P571":"4 January 2015"}}}}' class='wbmi-entityview-statementsGroup wbmi-entityview-statementsGroup-P571 oo-ui-layout oo-ui-panelLayout oo-ui-panelLayout-framed'><div class='wbmi-statements-widget'><div class='wbmi-statement-header'><div class='wbmi-entity-data'><div class='wbmi-entity-title'><h4 class='wbmi-entity-label'><bdi><a target="_blank" title="d:Special:EntityPage/P571" href="https://www.wikidata.org/wiki/Special:EntityPage/P571">inception</a></bdi></h4></div></div></div><div class='wbmi-content-items-group'><div class='wbmi-item wbmi-item-read'><div data-guid='M37842651$25D978ED-F83A-430E-96E6-CB784FE27DDD' class='wbmi-item-container'><div class='wbmi-entity-header'><div class='wbmi-entity-data'><div class='wbmi-entity-title'><h4 class='wbmi-entity-label'><bdi>4 January 2015</bdi></h4></div></div></div></div></div></div></div></div><div id='P4082' data-property='P4082' data-statements='[{"mainsnak":{"snaktype":"value","property":"P4082","hash":"fb8fa1a9c48a391809c60eed4e3adaaad29cc3e3","datavalue":{"value":{"entity-type":"item","numeric-id":1526341,"id":"Q1526341"},"type":"wikibase-entityid"}},"type":"statement","id":"M37842651$4DAC9F5A-BEF0-4CAA-A242-405E36D08513","rank":"normal"},{"mainsnak":{"snaktype":"value","property":"P4082","hash":"2e5cf82613f4391fe724129c67bbc8728edfb65d","datavalue":{"value":{"entity-type":"item","numeric-id":25038219,"id":"Q25038219"},"type":"wikibase-entityid"}},"type":"statement","id":"M37842651$bfb8fa41-4a8b-d990-2974-64ff28ee1532","rank":"normal"}]' data-formatvalue='{"{\"value\":{\"entity-type\":\"property\",\"numeric-id\":4082,\"id\":\"P4082\"},\"type\":\"wikibase-entityid\"}":{"text\/html":{"en":{"":"<a target=\"_blank\" title=\"d:Special:EntityPage\/P4082\" href=\"https:\/\/www.wikidata.org\/wiki\/Special:EntityPage\/P4082\">captured with<\/a>"}},"text\/plain":{"en":{"":"captured with"}}},"{\"value\":{\"entity-type\":\"item\",\"numeric-id\":1526341,\"id\":\"Q1526341\"},\"type\":\"wikibase-entityid\"}":{"text\/html":{"en":{"P4082":"<a target=\"_blank\" title=\"d:Special:EntityPage\/Q1526341\" href=\"https:\/\/www.wikidata.org\/wiki\/Special:EntityPage\/Q1526341\">Pentax K-5<\/a>"}},"text\/plain":{"en":{"P4082":"Pentax K-5"}}},"{\"value\":{\"entity-type\":\"item\",\"numeric-id\":25038219,\"id\":\"Q25038219\"},\"type\":\"wikibase-entityid\"}":{"text\/html":{"en":{"P4082":"<a target=\"_blank\" title=\"d:Special:EntityPage\/Q25038219\" href=\"https:\/\/www.wikidata.org\/wiki\/Special:EntityPage\/Q25038219\">SMC Pentax-D FA 100mm F2.8 Macro WR<\/a>"}},"text\/plain":{"en":{"P4082":"SMC Pentax-D FA 100mm F2.8 Macro WR"}}}}' class='wbmi-entityview-statementsGroup wbmi-entityview-statementsGroup-P4082 oo-ui-layout oo-ui-panelLayout oo-ui-panelLayout-framed'><div class='wbmi-statements-widget'><div class='wbmi-statement-header'><div class='wbmi-entity-data'><div class='wbmi-entity-title'><h4 class='wbmi-entity-label'><bdi><a target="_blank" title="d:Special:EntityPage/P4082" href="https://www.wikidata.org/wiki/Special:EntityPage/P4082">captured with</a></bdi></h4></div></div></div><div class='wbmi-content-items-group'><div class='wbmi-item wbmi-item-read'><div data-guid='M37842651$4DAC9F5A-BEF0-4CAA-A242-405E36D08513' class='wbmi-item-container'><div class='wbmi-entity-header'><div class='wbmi-entity-data'><div class='wbmi-entity-title'><h4 class='wbmi-entity-label'><bdi><a target="_blank" title="d:Special:EntityPage/Q1526341" href="https://www.wikidata.org/wiki/Special:EntityPage/Q1526341">Pentax K-5</a></bdi></h4></div></div></div></div></div><div class='wbmi-item wbmi-item-read'><div data-guid='M37842651$bfb8fa41-4a8b-d990-2974-64ff28ee1532' class='wbmi-item-container'><div class='wbmi-entity-header'><div class='wbmi-entity-data'><div class='wbmi-entity-title'><h4 class='wbmi-entity-label'><bdi><a target="_blank" title="d:Special:EntityPage/Q25038219" href="https://www.wikidata.org/wiki/Special:EntityPage/Q25038219">SMC Pentax-D FA 100mm F2.8 Macro WR</a></bdi></h4></div></div></div></div></div></div></div></div><div id='P7482' data-property='P7482' data-statements='[{"mainsnak":{"snaktype":"value","property":"P7482","hash":"83568a288a8b8b4714a68e7239d8406833762864","datavalue":{"value":{"entity-type":"item","numeric-id":66458942,"id":"Q66458942"},"type":"wikibase-entityid"}},"type":"statement","id":"M37842651$E4B2596C-CA21-4CCE-9991-62FF8DC1C79D","rank":"normal"}]' data-formatvalue='{"{\"value\":{\"entity-type\":\"property\",\"numeric-id\":7482,\"id\":\"P7482\"},\"type\":\"wikibase-entityid\"}":{"text\/html":{"en":{"":"<a target=\"_blank\" title=\"d:Special:EntityPage\/P7482\" href=\"https:\/\/www.wikidata.org\/wiki\/Special:EntityPage\/P7482\">source of file<\/a>"}},"text\/plain":{"en":{"":"source of file"}}},"{\"value\":{\"entity-type\":\"item\",\"numeric-id\":66458942,\"id\":\"Q66458942\"},\"type\":\"wikibase-entityid\"}":{"text\/html":{"en":{"P7482":"<a target=\"_blank\" title=\"d:Special:EntityPage\/Q66458942\" href=\"https:\/\/www.wikidata.org\/wiki\/Special:EntityPage\/Q66458942\">original creation by uploader<\/a>"}},"text\/plain":{"en":{"P7482":"original creation by uploader"}}}}' class='wbmi-entityview-statementsGroup wbmi-entityview-statementsGroup-P7482 oo-ui-layout oo-ui-panelLayout oo-ui-panelLayout-framed'><div class='wbmi-statements-widget'><div class='wbmi-statement-header'><div class='wbmi-entity-data'><div class='wbmi-entity-title'><h4 class='wbmi-entity-label'><bdi><a target="_blank" title="d:Special:EntityPage/P7482" href="https://www.wikidata.org/wiki/Special:EntityPage/P7482">source of file</a></bdi></h4></div></div></div><div class='wbmi-content-items-group'><div class='wbmi-item wbmi-item-read'><div data-guid='M37842651$E4B2596C-CA21-4CCE-9991-62FF8DC1C79D' class='wbmi-item-container'><div class='wbmi-entity-header'><div class='wbmi-entity-data'><div class='wbmi-entity-title'><h4 class='wbmi-entity-label'><bdi><a target="_blank" title="d:Special:EntityPage/Q66458942" href="https://www.wikidata.org/wiki/Special:EntityPage/Q66458942">original creation by uploader</a></bdi></h4></div></div></div></div></div></div></div></div></div></div></div></div></div> <div class="printfooter" data-nosnippet="">Retrieved from "<a dir="ltr" href="https://commons.wikimedia.org/w/index.php?title=File:Yellowing_of_thorium_lenses.jpg&oldid=799956922">https://commons.wikimedia.org/w/index.php?title=File:Yellowing_of_thorium_lenses.jpg&oldid=799956922</a>"</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Special:Categories" title="Special:Categories">Categories</a>: <ul><li><a href="/wiki/Category:Super-Multi-Coated_Takumar_50mm_F1.4" title="Category:Super-Multi-Coated Takumar 50mm F1.4">Super-Multi-Coated Takumar 50mm F1.4</a></li><li><a href="/wiki/Category:Auto_Yashinon-DS_50mm_f1.9" title="Category:Auto Yashinon-DS 50mm f1.9">Auto Yashinon-DS 50mm f1.9</a></li><li><a href="/wiki/Category:Thorium" title="Category:Thorium">Thorium</a></li><li><a href="/wiki/Category:Comparisons_of_photographic_lenses" title="Category:Comparisons of photographic lenses">Comparisons of photographic lenses</a></li></ul></div><div id="mw-hidden-catlinks" class="mw-hidden-catlinks mw-hidden-cats-user-shown">Hidden categories: <ul><li><a href="/wiki/Category:CC-BY-SA-4.0" title="Category:CC-BY-SA-4.0">CC-BY-SA-4.0</a></li><li><a href="/wiki/Category:Self-published_work" title="Category:Self-published work">Self-published work</a></li><li><a href="/wiki/Category:Featured_pictures_on_Wikimedia_Commons" title="Category:Featured pictures on Wikimedia Commons">Featured pictures on Wikimedia Commons</a></li><li><a href="/wiki/Category:Featured_pictures_on_Wikipedia,_English" 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