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Ultra wide angle lens - Wikipedia
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class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Camera lens with a very short focal length</div> <style data-mw-deduplicate="TemplateStyles:r1251242444">.mw-parser-output .ambox{border:1px solid #a2a9b1;border-left:10px solid #36c;background-color:#fbfbfb;box-sizing:border-box}.mw-parser-output .ambox+link+.ambox,.mw-parser-output .ambox+link+style+.ambox,.mw-parser-output .ambox+link+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+style+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+link+.ambox{margin-top:-1px}html body.mediawiki .mw-parser-output .ambox.mbox-small-left{margin:4px 1em 4px 0;overflow:hidden;width:238px;border-collapse:collapse;font-size:88%;line-height:1.25em}.mw-parser-output .ambox-speedy{border-left:10px solid #b32424;background-color:#fee7e6}.mw-parser-output .ambox-delete{border-left:10px solid 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href="/wiki/File:Question_book-new.svg" class="mw-file-description"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/50px-Question_book-new.svg.png" decoding="async" width="50" height="39" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/75px-Question_book-new.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/100px-Question_book-new.svg.png 2x" data-file-width="512" data-file-height="399" /></a></span></div></td><td class="mbox-text"><div class="mbox-text-span">This article <b>needs additional citations for <a href="/wiki/Wikipedia:Verifiability" title="Wikipedia:Verifiability">verification</a></b>.<span class="hide-when-compact"> Please help <a href="/wiki/Special:EditPage/Ultra_wide_angle_lens" title="Special:EditPage/Ultra wide angle lens">improve this article</a> by <a href="/wiki/Help:Referencing_for_beginners" title="Help:Referencing for beginners">adding 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Unsourced material may be challenged and removed.<br /><small><span class="plainlinks"><i>Find sources:</i> <a rel="nofollow" class="external text" href="https://www.google.com/search?as_eq=wikipedia&q=%22Ultra+wide+angle+lens%22">"Ultra wide angle lens"</a> – <a rel="nofollow" class="external text" href="https://www.google.com/search?tbm=nws&q=%22Ultra+wide+angle+lens%22+-wikipedia&tbs=ar:1">news</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.google.com/search?&q=%22Ultra+wide+angle+lens%22&tbs=bkt:s&tbm=bks">newspapers</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.google.com/search?tbs=bks:1&q=%22Ultra+wide+angle+lens%22+-wikipedia">books</a> <b>·</b> <a rel="nofollow" class="external text" href="https://scholar.google.com/scholar?q=%22Ultra+wide+angle+lens%22">scholar</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.jstor.org/action/doBasicSearch?Query=%22Ultra+wide+angle+lens%22&acc=on&wc=on">JSTOR</a></span></small></span> <span class="date-container"><i>(<span class="date">October 2020</span>)</i></span><span class="hide-when-compact"><i> (<small><a href="/wiki/Help:Maintenance_template_removal" title="Help:Maintenance template removal">Learn how and when to remove this message</a></small>)</i></span></div></td></tr></tbody></table> <figure class="mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/File:Leitz_Elmarit_R_19.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/8/87/Leitz_Elmarit_R_19.jpg/200px-Leitz_Elmarit_R_19.jpg" decoding="async" width="200" height="172" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/87/Leitz_Elmarit_R_19.jpg/300px-Leitz_Elmarit_R_19.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/87/Leitz_Elmarit_R_19.jpg/400px-Leitz_Elmarit_R_19.jpg 2x" data-file-width="2332" data-file-height="2002" /></a><figcaption>Leitz Elmarit R19/2.8 ultra wide angle lens for Leica R cameras</figcaption></figure> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Flextogon_20mm.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/1/13/Flextogon_20mm.jpg/220px-Flextogon_20mm.jpg" decoding="async" width="220" height="168" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/13/Flextogon_20mm.jpg/330px-Flextogon_20mm.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/13/Flextogon_20mm.jpg/440px-Flextogon_20mm.jpg 2x" data-file-width="2547" data-file-height="1943" /></a><figcaption>Ihagee Exa camera with Carl Zeiss Jena Flektogon 1:4 20 mm super wide angle lens</figcaption></figure> <p>An <b>ultra wide-angle lens</b> is a <a href="/wiki/Photographic_lens" class="mw-redirect" title="Photographic lens">lens</a> whose <a href="/wiki/Focal_length" title="Focal length">focal length</a> is shorter than that of an average <a href="/wiki/Wide-angle_lens" title="Wide-angle lens">wide-angle lens</a>, providing an even wider view. The term denotes a different range of lenses, relative to the size of the sensor in the camera in question.<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p> <ul><li>For 1" any 9mm or shorter is considered <b>ultra wide angle</b>.</li> <li>For <a href="/wiki/Four_Thirds_system" title="Four Thirds system">4/3"</a> any 10 mm or shorter lens is considered ultra wide angle.</li> <li>For <a href="/wiki/APS-C" title="APS-C">APS-C</a> any lens shorter than 15 mm.</li> <li>For <a href="/wiki/35mm_format" class="mw-redirect" title="35mm format">35mm</a> film or full-frame sensor any lens shorter than 24 mm</li> <li>For <a href="/wiki/Medium_format_(film)" class="mw-redirect" title="Medium format (film)">6x4.5</a> cm any lens shorter than 41 mm</li> <li>For <a href="/wiki/Medium_format_(film)" class="mw-redirect" title="Medium format (film)">6x6</a> cm and <a href="/wiki/Medium_format_(film)" class="mw-redirect" title="Medium format (film)">6x7</a> cm any lens shorter than 56 mm</li></ul> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Features">Features</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ultra_wide_angle_lens&action=edit&section=1" title="Edit section: Features"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="'Fisheye'_and_rectilinear_lenses"><span id=".27Fisheye.27_and_rectilinear_lenses"></span>'Fisheye' and rectilinear lenses</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ultra_wide_angle_lens&action=edit&section=2" title="Edit section: 'Fisheye' and rectilinear lenses"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure typeof="mw:File/Thumb"><a href="/wiki/File:Panotools5618.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/2/2c/Panotools5618.jpg/250px-Panotools5618.jpg" decoding="async" width="250" height="235" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/2c/Panotools5618.jpg/375px-Panotools5618.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/2c/Panotools5618.jpg/500px-Panotools5618.jpg 2x" data-file-width="2000" data-file-height="1880" /></a><figcaption><a href="/wiki/Curvilinear_perspective" title="Curvilinear perspective">Curvilinear</a> (above) and rectilinear (below) image. Notice the <a href="/wiki/Barrel_distortion" class="mw-redirect" title="Barrel distortion">barrel distortion</a> typical for fisheye lenses in the curvilinear image. While this example has been rectilinear-corrected by software, high-quality <a href="/wiki/Wide-angle_lens" title="Wide-angle lens">wide-angle lenses</a> are built with optical rectilinear correction.</figcaption></figure><figure class="mw-halign-left" typeof="mw:File/Thumb"><a href="/wiki/File:Foto-wiki-Peleng-Sky-Sun-1.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/0/02/Foto-wiki-Peleng-Sky-Sun-1.jpg/200px-Foto-wiki-Peleng-Sky-Sun-1.jpg" decoding="async" width="200" height="133" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/02/Foto-wiki-Peleng-Sky-Sun-1.jpg/300px-Foto-wiki-Peleng-Sky-Sun-1.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/02/Foto-wiki-Peleng-Sky-Sun-1.jpg/400px-Foto-wiki-Peleng-Sky-Sun-1.jpg 2x" data-file-width="3038" data-file-height="2019" /></a><figcaption>Bearing 8/3.5 fisheye. A capture of an entire scene, including the sun is shown (180-degree circular fisheye). The underside of the seagull is illuminated by flash</figcaption></figure><p>Ultra-wide angle lenses come in two varieties: <a href="/wiki/Fisheye_lens" title="Fisheye lens">Fisheye lenses</a> with <a href="/wiki/Curvilinear_perspective" title="Curvilinear perspective">curvilinear</a> <a href="/wiki/Barrel_distortion" class="mw-redirect" title="Barrel distortion">barrel distortion</a>, and <a href="/wiki/Rectilinear_lens" title="Rectilinear lens">rectilinear lenses</a> which are designed so that straight lines in the scene will render straight (uncurved) in the photographic image and thus lack the extreme distortion that is characteristic of a fisheye lens. Neither denotes a particular range of focal lengths, the difference is only whether distortion is present or not. However, the shorter the focal length, the more difficult it is to implement rectilinear correction. </p><p>In fisheye lenses, the visual angle is close to or more than 180 degrees in at least one direction. For example, a "diagonal fish eye" would have a viewing angle of at least 180 degrees within the diagonals of the frame. A "circular fisheye" would represent the image in the form of a circle. </p><p>Rectilinear ultra-wide angle lenses are used in photography and cinematography sometimes to achieve three-dimensional perspective distortion instead of simply two-dimensional barrel distortion. A notable, signature employment for this purpose is frequently seen in the films of <a href="/wiki/Terry_Gilliam" title="Terry Gilliam">Terry Gilliam</a>, for instance. </p> <div class="mw-heading mw-heading3"><h3 id="Larger_depth_of_field_(DOF)"><span id="Larger_depth_of_field_.28DOF.29"></span>Larger depth of field (DOF)</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ultra_wide_angle_lens&action=edit&section=3" title="Edit section: Larger depth of field (DOF)"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The DOF afforded by an ultra wide-angle lens is very great. Therefore, the photographer has the ability to keep much or almost all of the scene in focus, with respect to the hyperfocal distance of the lens. </p> <div class="mw-heading mw-heading3"><h3 id="Better_aperture_setting">Better aperture setting</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ultra_wide_angle_lens&action=edit&section=4" title="Edit section: Better aperture setting"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Thanks to the small focal length, these lenses can shoot longer exposures without fear of camera shake in the image. (In longer lenses camera shake is multiplied by the zoom factor, but in shorter lenses it is much less apparent). This means that the photographer can afford to use a much smaller aperture if they choose, and still retain a balanced image. </p> <div class="mw-heading mw-heading3"><h3 id="Undesirable_objects">Undesirable objects</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ultra_wide_angle_lens&action=edit&section=5" title="Edit section: Undesirable objects"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>With such a large visual angle, it can be very difficult at times to keep undesired objects such as light sources out of the image. However this does not always pose a problem, as even the sun in a photograph takes up such a small amount of space that its presence can often have little negative impact on the overall composition. </p> <div class="mw-heading mw-heading3"><h3 id="Use_of_filters">Use of filters</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ultra_wide_angle_lens&action=edit&section=6" title="Edit section: Use of filters"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>When using an ultra wide-angle lens, the sky often constitutes a very large portion of the frame, and may need to be darkened for the image to appear balanced. This is often achieved through the use of a gradient filter. Note that a polarizing filter, which also darkens the sky, will often give uneven results when used on an ultra-wide angle lens. </p> <div class="mw-heading mw-heading2"><h2 id="Development">Development</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ultra_wide_angle_lens&action=edit&section=7" title="Edit section: Development"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The oldest "lenses", pinholes, used in <a href="/wiki/Pinhole_camera" title="Pinhole camera">pinhole cameras</a>, keep perspective accurately. In images made using this technique, there is little or no distortion due to the rectilinear propagation of light. For a long time it was thought that only symmetrical optical diagrams could ensure the geometrically precise transfer of light without distortion becoming apparent near the edge of images (as the viewing angle increases). However, with modern technology and understanding of optics, ultra wide-angle lenses can these days eliminate distortion almost completely. </p><p>Smartphones began incorporating ultra wide angle lens on rear cameras in the mid 2010s. The first models being LG’s <a href="/wiki/LG_G5" title="LG G5">G5</a> and <a href="/wiki/LG_V20" title="LG V20">V20</a> in 2016.<sup id="cite_ref-Byford_2021_2-0" class="reference"><a href="#cite_note-Byford_2021-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Characteristics">Characteristics</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ultra_wide_angle_lens&action=edit&section=8" title="Edit section: Characteristics"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Focal_length.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e5/Focal_length.jpg/220px-Focal_length.jpg" decoding="async" width="220" height="440" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/e/e5/Focal_length.jpg 1.5x" data-file-width="300" data-file-height="600" /></a><figcaption>How focal length affects perspective: 18 mm (ultra wide-angle), 34 mm (wide-angle), and 55 mm (normal lens) at identical <a href="/wiki/Shot_(filmmaking)#By_field_size" title="Shot (filmmaking)">field size</a> achieved by different camera-subject distances. Notice that the shorter the focal length and the wider the angle of view, perspective distortion and size differences change.</figcaption></figure><p>Longer lenses magnify the subject more, apparently compressing distance and (when focused on the foreground) blurring the background because of their shallower <a href="/wiki/Depth_of_field" title="Depth of field">depth of field</a>. Wider lenses tend to magnify distance between objects while allowing greater depth of field. </p><p>Another result of using a wide-angle lens is a greater apparent <a href="/wiki/Perspective_distortion_(photography)" class="mw-redirect" title="Perspective distortion (photography)">perspective distortion</a> when the camera is not aligned perpendicularly to the subject: parallel lines converge at the same rate as with a <a href="/wiki/Normal_lens" title="Normal lens">normal lens</a>, but converge more due to the wider total field. For example, buildings appear to be falling backwards much more severely when the camera is pointed upward from ground level than they would if photographed with a normal lens at the same distance from the subject, because more of the subject building is visible in the wide-angle shot. </p><p>Because different lenses generally require a different camera–subject distance to preserve the size of a subject, changing the <a href="/wiki/Angle_of_view" class="mw-redirect" title="Angle of view">angle of view</a> can indirectly <a href="/wiki/Perspective_distortion_(photography)" class="mw-redirect" title="Perspective distortion (photography)">distort</a> perspective, changing the apparent relative size of the subject and foreground. </p> <ul class="gallery mw-gallery-traditional"> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Foto-wiki-Sigma1020-outdoor-lines.jpg" class="mw-file-description" title="Photograph taken with a Sigma 10–20 mm lens, which is a rectilinear lens as obvious by the lack of distortion of straight lines."><img alt="Photograph taken with a Sigma 10–20 mm lens, which is a rectilinear lens as obvious by the lack of distortion of straight lines." src="//upload.wikimedia.org/wikipedia/commons/thumb/1/1d/Foto-wiki-Sigma1020-outdoor-lines.jpg/74px-Foto-wiki-Sigma1020-outdoor-lines.jpg" decoding="async" width="74" height="120" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/1d/Foto-wiki-Sigma1020-outdoor-lines.jpg/111px-Foto-wiki-Sigma1020-outdoor-lines.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/1d/Foto-wiki-Sigma1020-outdoor-lines.jpg/148px-Foto-wiki-Sigma1020-outdoor-lines.jpg 2x" data-file-width="402" data-file-height="649" /></a></span></div> <div class="gallerytext">Photograph taken with a Sigma 10–20 mm lens, which is a <a href="/wiki/Rectilinear_lens" title="Rectilinear lens">rectilinear lens</a> as obvious by the lack of distortion of straight lines.</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Foto-wiki-Sigma1020-Sky.jpg" class="mw-file-description" title="Sigma 10–20 mm photograph of sky exhibiting some of the characteristics often found in images taken with an ultra wide-angle lens."><img alt="Sigma 10–20 mm photograph of sky exhibiting some of the characteristics often found in images taken with an ultra wide-angle lens." src="//upload.wikimedia.org/wikipedia/commons/thumb/9/96/Foto-wiki-Sigma1020-Sky.jpg/120px-Foto-wiki-Sigma1020-Sky.jpg" decoding="async" width="120" height="80" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/96/Foto-wiki-Sigma1020-Sky.jpg/180px-Foto-wiki-Sigma1020-Sky.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/96/Foto-wiki-Sigma1020-Sky.jpg/240px-Foto-wiki-Sigma1020-Sky.jpg 2x" data-file-width="2847" data-file-height="1898" /></a></span></div> <div class="gallerytext">Sigma 10–20 mm photograph of sky exhibiting some of the characteristics often found in images taken with an ultra wide-angle lens. </div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Foto-wiki-Sigma1020-indoor-ovals.jpg" class="mw-file-description" title="Sigma 10–20 mm photograph of an interior space. Distortion can be seen on spherical objects, which become elongated."><img alt="Sigma 10–20 mm photograph of an interior space. Distortion can be seen on spherical objects, which become elongated." src="//upload.wikimedia.org/wikipedia/commons/thumb/7/75/Foto-wiki-Sigma1020-indoor-ovals.jpg/120px-Foto-wiki-Sigma1020-indoor-ovals.jpg" decoding="async" width="120" height="80" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/75/Foto-wiki-Sigma1020-indoor-ovals.jpg/180px-Foto-wiki-Sigma1020-indoor-ovals.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/75/Foto-wiki-Sigma1020-indoor-ovals.jpg/240px-Foto-wiki-Sigma1020-indoor-ovals.jpg 2x" data-file-width="602" data-file-height="400" /></a></span></div> <div class="gallerytext">Sigma 10–20 mm photograph of an interior space. Distortion can be seen on spherical objects, which become elongated.</div> </li> <li class="gallerybox" style="width: 155px"> <div class="thumb" style="width: 150px; height: 150px;"><span typeof="mw:File"><a href="/wiki/File:Foto-wiki-Sigma1020-people.jpg" class="mw-file-description" title="Sigma 10–20 mm photograph of people with the characteristic distortion to the edges of the image."><img alt="Sigma 10–20 mm photograph of people with the characteristic distortion to the edges of the image." src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d5/Foto-wiki-Sigma1020-people.jpg/120px-Foto-wiki-Sigma1020-people.jpg" decoding="async" width="120" height="60" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d5/Foto-wiki-Sigma1020-people.jpg/180px-Foto-wiki-Sigma1020-people.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d5/Foto-wiki-Sigma1020-people.jpg/240px-Foto-wiki-Sigma1020-people.jpg 2x" data-file-width="640" data-file-height="320" /></a></span></div> <div class="gallerytext">Sigma 10–20 mm photograph of people with the characteristic distortion to the edges of the image.</div> </li> </ul> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Ultra_wide_angle_lens&action=edit&section=9" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-1">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://photographylife.com/ultra-wide-angle-lens">"What is an Ultra-Wide Angle Lens and How to Use It"</a>. <i>Photography Life</i>. 17 August 2019.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Photography+Life&rft.atitle=What+is+an+Ultra-Wide+Angle+Lens+and+How+to+Use+It&rft.date=2019-08-17&rft_id=https%3A%2F%2Fphotographylife.com%2Fultra-wide-angle-lens&rfr_id=info%3Asid%2Fen.wikipedia.org%3AUltra+wide+angle+lens" class="Z3988"></span></span> </li> <li id="cite_note-Byford_2021-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-Byford_2021_2-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFByford2021" class="citation web cs1">Byford, Sam (2021-04-05). <a rel="nofollow" class="external text" href="https://www.theverge.com/22367903/lg-smartphone-retrospective-hits-misses">"LG had few smartphone hits, but it'll still be missed"</a>. <i>The Verge</i><span class="reference-accessdate">. Retrieved <span class="nowrap">2022-12-26</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=The+Verge&rft.atitle=LG+had+few+smartphone+hits%2C+but+it%E2%80%99ll+still+be+missed&rft.date=2021-04-05&rft.aulast=Byford&rft.aufirst=Sam&rft_id=https%3A%2F%2Fwww.theverge.com%2F22367903%2Flg-smartphone-retrospective-hits-misses&rfr_id=info%3Asid%2Fen.wikipedia.org%3AUltra+wide+angle+lens" class="Z3988"></span></span> </li> </ol></div></div> <!-- NewPP limit report Parsed by mw‐web.eqiad.main‐5dc468848‐rfmrd Cached time: 20241122143943 Cache expiry: 2592000 Reduced expiry: false Complications: [vary‐revision‐sha1, show‐toc] CPU time usage: 0.205 seconds Real time usage: 0.593 seconds Preprocessor visited node count: 416/1000000 Post‐expand include size: 13692/2097152 bytes Template argument size: 586/2097152 bytes Highest expansion depth: 9/100 Expensive parser function count: 2/500 Unstrip recursion depth: 1/20 Unstrip post‐expand size: 14097/5000000 bytes Lua time usage: 0.117/10.000 seconds Lua memory usage: 4059153/52428800 bytes Number of Wikibase entities loaded: 0/400 --> <!-- Transclusion expansion time report (%,ms,calls,template) 100.00% 480.479 1 -total 36.02% 173.051 1 Template:More_citations_needed 30.25% 145.323 1 Template:Ambox 27.58% 132.498 1 Template:Short_description 27.55% 132.391 1 Template:Reflist 23.52% 112.995 2 Template:Cite_web 14.53% 69.826 2 Template:Pagetype 8.95% 43.010 3 Template:Main_other 8.51% 40.906 1 Template:SDcat 7.13% 34.260 1 Template:Find_sources_mainspace --> <!-- Saved in parser cache with key enwiki:pcache:idhash:15790548-0!canonical and timestamp 20241122143943 and revision id 1226871996. 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