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Dit is echter niet verplicht." class=""><span>Account aanmaken</span></a> </li> <li id="pt-login-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Speciaal:Aanmelden&returnto=Brandpuntsafstand" title="U wordt van harte uitgenodigd om aan te melden, maar dit is niet verplicht [o]" accesskey="o" class=""><span>Aanmelden</span></a> </li> </ul> </div> </div> </div> <div id="vector-user-links-dropdown" class="vector-dropdown vector-user-menu vector-button-flush-right vector-user-menu-logged-out" title="Meer opties" > <input type="checkbox" id="vector-user-links-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-user-links-dropdown" class="vector-dropdown-checkbox " aria-label="Persoonlijke hulpmiddelen" > <label id="vector-user-links-dropdown-label" for="vector-user-links-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-ellipsis mw-ui-icon-wikimedia-ellipsis"></span> <span class="vector-dropdown-label-text">Persoonlijke hulpmiddelen</span> </label> <div class="vector-dropdown-content"> <div id="p-personal" class="vector-menu mw-portlet mw-portlet-personal user-links-collapsible-item" title="Gebruikersmenu" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport" class="user-links-collapsible-item mw-list-item"><a href="//donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_nl.wikipedia.org&uselang=nl"><span>Doneren</span></a></li><li id="pt-createaccount" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Speciaal:GebruikerAanmaken&returnto=Brandpuntsafstand" title="Registreer u vooral en meld u aan. Dit is echter niet verplicht."><span class="vector-icon mw-ui-icon-userAdd mw-ui-icon-wikimedia-userAdd"></span> <span>Account aanmaken</span></a></li><li id="pt-login" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Speciaal:Aanmelden&returnto=Brandpuntsafstand" title="U wordt van harte uitgenodigd om aan te melden, maar dit is niet verplicht [o]" accesskey="o"><span class="vector-icon mw-ui-icon-logIn mw-ui-icon-wikimedia-logIn"></span> <span>Aanmelden</span></a></li> </ul> </div> </div> <div id="p-user-menu-anon-editor" class="vector-menu mw-portlet mw-portlet-user-menu-anon-editor" > <div class="vector-menu-heading"> Pagina's voor uitgelogde redacteuren <a href="/wiki/Help:Inleiding" aria-label="Meer leren over bewerken"><span>meer lezen</span></a> </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-anoncontribs" class="mw-list-item"><a href="/wiki/Speciaal:MijnBijdragen" title="Bijdragen IP-adres [y]" accesskey="y"><span>Bijdragen</span></a></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/Speciaal:MijnOverleg" title="Overlegpagina van de anonieme gebruiker van dit IP-adres [n]" accesskey="n"><span>Overleg</span></a></li> </ul> </div> </div> </div> </div> </nav> </div> </header> </div> <div class="mw-page-container"> <div class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="Site"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Brandpuntsafstand</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Ga naar een artikel in een andere taal. Beschikbaar in 55 talen" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-55" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">55 talen</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-af mw-list-item"><a href="https://af.wikipedia.org/wiki/Fokusafstand" title="Fokusafstand – Afrikaans" lang="af" hreflang="af" data-title="Fokusafstand" data-language-autonym="Afrikaans" data-language-local-name="Afrikaans" class="interlanguage-link-target"><span>Afrikaans</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%A8%D8%B9%D8%AF_%D8%A8%D8%A4%D8%B1%D9%8A" title="بعد بؤري – Arabisch" lang="ar" hreflang="ar" data-title="بعد بؤري" data-language-autonym="العربية" data-language-local-name="Arabisch" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-ast mw-list-item"><a href="https://ast.wikipedia.org/wiki/Distancia_focal" title="Distancia focal – Asturisch" lang="ast" hreflang="ast" data-title="Distancia focal" data-language-autonym="Asturianu" data-language-local-name="Asturisch" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-bar mw-list-item"><a href="https://bar.wikipedia.org/wiki/Brennweidn" title="Brennweidn – Beiers" lang="bar" hreflang="bar" data-title="Brennweidn" data-language-autonym="Boarisch" data-language-local-name="Beiers" class="interlanguage-link-target"><span>Boarisch</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%A4%D0%BE%D0%BA%D1%83%D1%81%D0%BD%D0%B0%D1%8F_%D0%B0%D0%B4%D0%BB%D0%B5%D0%B3%D0%BB%D0%B0%D1%81%D1%86%D1%8C" title="Фокусная адлегласць – Belarussisch" lang="be" hreflang="be" data-title="Фокусная адлегласць" data-language-autonym="Беларуская" data-language-local-name="Belarussisch" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%A4%D0%BE%D0%BA%D1%83%D1%81%D0%BD%D0%BE_%D1%80%D0%B0%D0%B7%D1%81%D1%82%D0%BE%D1%8F%D0%BD%D0%B8%D0%B5" title="Фокусно разстояние – Bulgaars" lang="bg" hreflang="bg" data-title="Фокусно разстояние" data-language-autonym="Български" data-language-local-name="Bulgaars" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%AB%E0%A7%8B%E0%A6%95%E0%A6%BE%E0%A6%B8_%E0%A6%A6%E0%A7%82%E0%A6%B0%E0%A6%A4%E0%A7%8D%E0%A6%AC" title="ফোকাস দূরত্ব – Bengaals" lang="bn" hreflang="bn" data-title="ফোকাস দূরত্ব" data-language-autonym="বাংলা" data-language-local-name="Bengaals" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Dist%C3%A0ncia_focal" title="Distància focal – Catalaans" lang="ca" hreflang="ca" data-title="Distància focal" data-language-autonym="Català" data-language-local-name="Catalaans" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Ohniskov%C3%A1_vzd%C3%A1lenost" title="Ohnisková vzdálenost – Tsjechisch" lang="cs" hreflang="cs" data-title="Ohnisková vzdálenost" data-language-autonym="Čeština" data-language-local-name="Tsjechisch" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Br%C3%A6ndvidde" title="Brændvidde – Deens" lang="da" hreflang="da" data-title="Brændvidde" data-language-autonym="Dansk" data-language-local-name="Deens" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Brennweite" title="Brennweite – Duits" lang="de" hreflang="de" data-title="Brennweite" data-language-autonym="Deutsch" data-language-local-name="Duits" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%95%CF%83%CF%84%CE%B9%CE%B1%CE%BA%CE%AE_%CE%B1%CF%80%CF%8C%CF%83%CF%84%CE%B1%CF%83%CE%B7" title="Εστιακή απόσταση – Grieks" lang="el" hreflang="el" data-title="Εστιακή απόσταση" data-language-autonym="Ελληνικά" data-language-local-name="Grieks" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Focal_length" title="Focal length – Engels" lang="en" hreflang="en" data-title="Focal length" data-language-autonym="English" data-language-local-name="Engels" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/%C4%88efa_fokusa_distanco" title="Ĉefa fokusa distanco – Esperanto" lang="eo" hreflang="eo" data-title="Ĉefa fokusa distanco" data-language-autonym="Esperanto" data-language-local-name="Esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Distancia_focal" title="Distancia focal – Spaans" lang="es" hreflang="es" data-title="Distancia focal" data-language-autonym="Español" data-language-local-name="Spaans" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Fookuskaugus" title="Fookuskaugus – Estisch" lang="et" hreflang="et" data-title="Fookuskaugus" data-language-autonym="Eesti" data-language-local-name="Estisch" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Foku-distantzia" title="Foku-distantzia – Baskisch" lang="eu" hreflang="eu" data-title="Foku-distantzia" data-language-autonym="Euskara" data-language-local-name="Baskisch" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D9%81%D8%A7%D8%B5%D9%84%D9%87_%DA%A9%D8%A7%D9%86%D9%88%D9%86%DB%8C_%D8%B9%D8%AF%D8%B3%DB%8C" title="فاصله کانونی عدسی – Perzisch" lang="fa" hreflang="fa" data-title="فاصله کانونی عدسی" data-language-autonym="فارسی" data-language-local-name="Perzisch" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Polttov%C3%A4li" title="Polttoväli – Fins" lang="fi" hreflang="fi" data-title="Polttoväli" data-language-autonym="Suomi" data-language-local-name="Fins" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Focale" title="Focale – Frans" lang="fr" hreflang="fr" data-title="Focale" data-language-autonym="Français" data-language-local-name="Frans" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%AB%E0%A5%8B%E0%A4%95%E0%A4%B8_%E0%A4%A6%E0%A5%82%E0%A4%B0%E0%A5%80" title="फोकस दूरी – Hindi" lang="hi" hreflang="hi" data-title="फोकस दूरी" data-language-autonym="हिन्दी" data-language-local-name="Hindi" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/%C5%BDari%C5%A1na_duljina" title="Žarišna duljina – Kroatisch" lang="hr" hreflang="hr" data-title="Žarišna duljina" data-language-autonym="Hrvatski" data-language-local-name="Kroatisch" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-ht mw-list-item"><a href="https://ht.wikipedia.org/wiki/Distans_fokal" title="Distans fokal – Haïtiaans Creools" lang="ht" hreflang="ht" data-title="Distans fokal" data-language-autonym="Kreyòl ayisyen" data-language-local-name="Haïtiaans Creools" class="interlanguage-link-target"><span>Kreyòl ayisyen</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/F%C3%B3kuszt%C3%A1vols%C3%A1g" title="Fókusztávolság – Hongaars" lang="hu" hreflang="hu" data-title="Fókusztávolság" data-language-autonym="Magyar" data-language-local-name="Hongaars" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-ia mw-list-item"><a href="https://ia.wikipedia.org/wiki/Distantia_focal" title="Distantia focal – Interlingua" lang="ia" hreflang="ia" data-title="Distantia focal" data-language-autonym="Interlingua" data-language-local-name="Interlingua" class="interlanguage-link-target"><span>Interlingua</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Jarak_fokus" title="Jarak fokus – Indonesisch" lang="id" hreflang="id" data-title="Jarak fokus" data-language-autonym="Bahasa Indonesia" data-language-local-name="Indonesisch" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Lunghezza_focale" title="Lunghezza focale – Italiaans" lang="it" hreflang="it" data-title="Lunghezza focale" data-language-autonym="Italiano" data-language-local-name="Italiaans" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E7%84%A6%E7%82%B9%E8%B7%9D%E9%9B%A2" title="焦点距離 – Japans" lang="ja" hreflang="ja" data-title="焦点距離" data-language-autonym="日本語" data-language-local-name="Japans" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EC%B4%88%EC%A0%90%EA%B1%B0%EB%A6%AC" title="초점거리 – Koreaans" lang="ko" hreflang="ko" data-title="초점거리" data-language-autonym="한국어" data-language-local-name="Koreaans" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-lb mw-list-item"><a href="https://lb.wikipedia.org/wiki/Brennw%C3%A4it" title="Brennwäit – Luxemburgs" lang="lb" hreflang="lb" data-title="Brennwäit" data-language-autonym="Lëtzebuergesch" data-language-local-name="Luxemburgs" class="interlanguage-link-target"><span>Lëtzebuergesch</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/%C5%BDidinio_nuotolis" title="Židinio nuotolis – Litouws" lang="lt" hreflang="lt" data-title="Židinio nuotolis" data-language-autonym="Lietuvių" data-language-local-name="Litouws" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-ml mw-list-item"><a href="https://ml.wikipedia.org/wiki/%E0%B4%AB%E0%B5%8B%E0%B4%95%E0%B5%8D%E0%B4%95%E0%B4%B8%E0%B5%8D_%E0%B4%A6%E0%B5%82%E0%B4%B0%E0%B4%82" title="ഫോക്കസ് ദൂരം – Malayalam" lang="ml" hreflang="ml" data-title="ഫോക്കസ് ദൂരം" data-language-autonym="മലയാളം" data-language-local-name="Malayalam" class="interlanguage-link-target"><span>മലയാളം</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Jarak_fokus" title="Jarak fokus – Maleis" lang="ms" hreflang="ms" data-title="Jarak fokus" data-language-autonym="Bahasa Melayu" data-language-local-name="Maleis" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/Brennvidd" title="Brennvidd – Noors - Nynorsk" lang="nn" hreflang="nn" data-title="Brennvidd" data-language-autonym="Norsk nynorsk" data-language-local-name="Noors - Nynorsk" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Brennvidde" title="Brennvidde – Noors - Bokmål" lang="nb" hreflang="nb" data-title="Brennvidde" data-language-autonym="Norsk bokmål" data-language-local-name="Noors - Bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-oc mw-list-item"><a href="https://oc.wikipedia.org/wiki/Focala" title="Focala – Occitaans" lang="oc" hreflang="oc" data-title="Focala" data-language-autonym="Occitan" data-language-local-name="Occitaans" class="interlanguage-link-target"><span>Occitan</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Ogniskowa" title="Ogniskowa – Pools" lang="pl" hreflang="pl" data-title="Ogniskowa" data-language-autonym="Polski" data-language-local-name="Pools" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Dist%C3%A2ncia_focal" title="Distância focal – Portugees" lang="pt" hreflang="pt" data-title="Distância focal" data-language-autonym="Português" data-language-local-name="Portugees" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Distan%C8%9B%C4%83_focal%C4%83" title="Distanță focală – Roemeens" lang="ro" hreflang="ro" data-title="Distanță focală" data-language-autonym="Română" data-language-local-name="Roemeens" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%A4%D0%BE%D0%BA%D1%83%D1%81%D0%BD%D0%BE%D0%B5_%D1%80%D0%B0%D1%81%D1%81%D1%82%D0%BE%D1%8F%D0%BD%D0%B8%D0%B5" title="Фокусное расстояние – Russisch" lang="ru" hreflang="ru" data-title="Фокусное расстояние" data-language-autonym="Русский" data-language-local-name="Russisch" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/%C5%BDari%C5%A1na_duljina" title="Žarišna duljina – Servo-Kroatisch" lang="sh" hreflang="sh" data-title="Žarišna duljina" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="Servo-Kroatisch" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Focal_length" title="Focal length – Simple English" lang="en-simple" hreflang="en-simple" data-title="Focal length" data-language-autonym="Simple English" data-language-local-name="Simple English" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/Ohniskov%C3%A1_vzdialenos%C5%A5" title="Ohnisková vzdialenosť – Slowaaks" lang="sk" hreflang="sk" data-title="Ohnisková vzdialenosť" data-language-autonym="Slovenčina" data-language-local-name="Slowaaks" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Gori%C5%A1%C4%8Dna_razdalja" title="Goriščna razdalja – Sloveens" lang="sl" hreflang="sl" data-title="Goriščna razdalja" data-language-autonym="Slovenščina" data-language-local-name="Sloveens" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%C5%BDi%C5%BEna_daljina" title="Žižna daljina – Servisch" lang="sr" hreflang="sr" data-title="Žižna daljina" data-language-autonym="Српски / srpski" data-language-local-name="Servisch" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Br%C3%A4nnvidd" title="Brännvidd – Zweeds" lang="sv" hreflang="sv" data-title="Brännvidd" data-language-autonym="Svenska" data-language-local-name="Zweeds" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/%E0%AE%95%E0%AF%81%E0%AE%B5%E0%AE%BF%E0%AE%AF%E0%AE%A4%E0%AF%8D_%E0%AE%A4%E0%AF%82%E0%AE%B0%E0%AE%AE%E0%AF%8D" title="குவியத் தூரம் – Tamil" lang="ta" hreflang="ta" data-title="குவியத் தூரம்" data-language-autonym="தமிழ்" data-language-local-name="Tamil" class="interlanguage-link-target"><span>தமிழ்</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B8%84%E0%B8%A7%E0%B8%B2%E0%B8%A1%E0%B8%A2%E0%B8%B2%E0%B8%A7%E0%B9%82%E0%B8%9F%E0%B8%81%E0%B8%B1%E0%B8%AA" title="ความยาวโฟกัส – Thai" lang="th" hreflang="th" data-title="ความยาวโฟกัส" data-language-autonym="ไทย" data-language-local-name="Thai" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Odak" title="Odak – Turks" lang="tr" hreflang="tr" data-title="Odak" data-language-autonym="Türkçe" data-language-local-name="Turks" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%A4%D0%BE%D0%BA%D1%83%D1%81%D0%BD%D0%B0_%D0%B2%D1%96%D0%B4%D1%81%D1%82%D0%B0%D0%BD%D1%8C" title="Фокусна відстань – Oekraïens" lang="uk" hreflang="uk" data-title="Фокусна відстань" data-language-autonym="Українська" data-language-local-name="Oekraïens" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-ur mw-list-item"><a href="https://ur.wikipedia.org/wiki/%D8%B7%D9%88%D9%84_%D9%85%D8%A7%D8%B3%DA%A9%DB%81" title="طول ماسکہ – Urdu" lang="ur" hreflang="ur" data-title="طول ماسکہ" data-language-autonym="اردو" data-language-local-name="Urdu" class="interlanguage-link-target"><span>اردو</span></a></li><li class="interlanguage-link interwiki-uz mw-list-item"><a href="https://uz.wikipedia.org/wiki/Fokus_masofasi" title="Fokus masofasi – Oezbeeks" lang="uz" hreflang="uz" data-title="Fokus masofasi" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="Oezbeeks" class="interlanguage-link-target"><span>Oʻzbekcha / ўзбекча</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/Ti%C3%AAu_c%E1%BB%B1" title="Tiêu cự – Vietnamees" lang="vi" hreflang="vi" data-title="Tiêu cự" data-language-autonym="Tiếng Việt" data-language-local-name="Vietnamees" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E7%84%A6%E8%B7%9D" title="焦距 – Chinees" lang="zh" hreflang="zh" data-title="焦距" data-language-autonym="中文" data-language-local-name="Chinees" class="interlanguage-link-target"><span>中文</span></a></li><li class="interlanguage-link interwiki-zh-yue mw-list-item"><a href="https://zh-yue.wikipedia.org/wiki/%E7%84%A6%E8%B7%9D" title="焦距 – Kantonees" lang="yue" hreflang="yue" data-title="焦距" data-language-autonym="粵語" data-language-local-name="Kantonees" class="interlanguage-link-target"><span>粵語</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q193540#sitelinks-wikipedia" title="Taalkoppelingen bewerken" class="wbc-editpage">Koppelingen bewerken</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Naamruimten"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Brandpuntsafstand" title="Inhoudspagina 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</div> <div id="siteSub" class="noprint">Uit Wikipedia, de vrije encyclopedie</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="nl" dir="ltr"><figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/Bestand:Positive_lens_2.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/4/42/Positive_lens_2.svg/260px-Positive_lens_2.svg.png" decoding="async" width="260" height="156" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/42/Positive_lens_2.svg/390px-Positive_lens_2.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/42/Positive_lens_2.svg/520px-Positive_lens_2.svg.png 2x" data-file-width="2953" data-file-height="1772" /></a><figcaption>Een positieve lens <br /> Lichtstralen, die evenwijdig invallen en de lens passeren, convergeren aan de andere kant van de lens.</figcaption></figure> <p>De <b>brandpuntsafstand</b> van een <a href="/wiki/Lens_(optica)" title="Lens (optica)">lens</a> of spiegel is gedefinieerd als de afstand tussen de lens en het punt waar lichtstralen, die <a href="/wiki/Evenwijdig" title="Evenwijdig">evenwijdig</a> aan de optische as invallen, na door de lens samenkomen omdat zij in de lens <a href="/wiki/Lichtbreking" title="Lichtbreking">van richting zijn gebroken</a>. Dat punt heet het brandpunt of de focus van de lens en is in de figuur hiernaast met een <b>F</b> aangegeven. De brandpuntsafstand wordt met <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle f}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>f</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle f}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/132e57acb643253e7810ee9702d9581f159a1c61" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:1.279ex; height:2.509ex;" alt="{\displaystyle f}"></span> aangegeven en in lengte-eenheden (in meters) uitgedrukt. </p><p>Deze definitie is alleen voor <a href="/wiki/Dunne_lens" title="Dunne lens">dunne lenzen</a> te gebruiken. Voor <a href="/wiki/Dikke_lens" title="Dikke lens">dikke lenzen</a> en stelsels van lenzen, zoals in een <a href="/wiki/Verrekijker" title="Verrekijker">verrekijker</a>, moet de brandpuntsafstand anders worden gedefinieerd, met behulp van <a href="/wiki/Hoofdvlak" title="Hoofdvlak">hoofdvlakken</a>. </p><p>In plaats van de brandpuntsafstand wordt voor <a href="/wiki/Bril" title="Bril">brillenglazen</a>, voorzetlenzen en dergelijke de <a href="/wiki/Lens_(optica)#Lenssterkte" title="Lens (optica)">lenssterkte</a> gebruikt, die is gedefinieerd als de <a href="/wiki/Omgekeerde" title="Omgekeerde">omgekeerde</a> waarde van de brandpuntsafstand. Er kan met de lenssterkte eenvoudiger worden gerekend dan met de brandpuntsafstand. De eenheid voor de lenssterkte is de <a href="/wiki/Dioptrie" title="Dioptrie">dioptrie</a>, gedefinieerd als 1 dpt = 1 m<sup>-1</sup>. </p><p>De brandpuntsafstand is in de <a href="/wiki/Fotografie" title="Fotografie">fotografie</a> een belangrijk begrip. Ieder <a href="/wiki/Objectief_(optica)" title="Objectief (optica)">objectief</a> wordt behalve door de helderheid van het in het objectief voor de lenzen gebruikte glas door de brandpuntsafstand ervan bepaald. </p> <style data-mw-deduplicate="TemplateStyles:r67837862">.mw-parser-output .navigatie{position:relative;clear:both;overflow:auto;margin:1em auto -0.5em;padding:2px;background-color:var(--background-color-neutral-subtle,#f8f9fa);border:1px solid var(--border-color-base,#a2a9b1);text-align:center;font-size:87%}.mw-parser-output .navigatie-bewerken{margin-left:0.5em}.mw-parser-output .navigatie-bewerken .mw-ui-icon::before{background-size:0.9em}.mw-parser-output .navigatie-afb-links,.mw-parser-output .navigatie-afb-rechts{position:absolute}.mw-parser-output .navigatie-afb-rechts{right:2px}.mw-parser-output .navigatie-afb-groot{float:right;padding-left:0.5em}.mw-parser-output .navigatie-titel{background-color:#ddeef8;padding:2px 5.5em;font-weight:bold}.mw-parser-output .navigatie-inhoud{padding:0.5em}.mw-parser-output .navigatie-inhoud p:first-child{margin:0}.mw-parser-output .navigatie div[style*="background-color"],.mw-parser-output .navigatie div[style*="background"]{color:inherit}@media screen{html.skin-theme-clientpref-night .mw-parser-output .navigatie-titel{background-color:var(--background-color-interactive,#eaecf0)!important}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .navigatie-titel{background-color:var(--background-color-interactive,#eaecf0)!important}}</style> <div class="navigatie mw-collapsible mw-collapsed" role="navigation" aria-labelledby="Geometrische_optica" data-expandtext="Uitklappen" data-collapsetext="Inklappen"> <div class="navigatie-afb-links noviewer"><div class="navigatie-bewerken show-autoconfirmed nomobile"><span class="nowrap skin-invert-image"><span typeof="mw:File"><a href="/wiki/Sjabloon:Navigatie_geometrische_optica" title="Sjabloon:Navigatie geometrische optica"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c4/OOjs_UI_icon_article-ltr.svg/16px-OOjs_UI_icon_article-ltr.svg.png" decoding="async" width="16" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c4/OOjs_UI_icon_article-ltr.svg/24px-OOjs_UI_icon_article-ltr.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c4/OOjs_UI_icon_article-ltr.svg/32px-OOjs_UI_icon_article-ltr.svg.png 2x" data-file-width="20" data-file-height="20" /></a></span> · <span class="ui-state-disabled" typeof="mw:File"><span title="Overleg sjabloon (de pagina bestaat niet)"><img alt="Overleg sjabloon (de pagina bestaat niet)" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/40/OOjs_UI_icon_speechBubbles-ltr.svg/16px-OOjs_UI_icon_speechBubbles-ltr.svg.png" decoding="async" width="16" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/40/OOjs_UI_icon_speechBubbles-ltr.svg/24px-OOjs_UI_icon_speechBubbles-ltr.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/40/OOjs_UI_icon_speechBubbles-ltr.svg/32px-OOjs_UI_icon_speechBubbles-ltr.svg.png 2x" data-file-width="20" data-file-height="20" /></span></span> · <span typeof="mw:File"><a href="//nl.wikipedia.org/w/index.php?title=Sjabloon:Navigatie_geometrische_optica&action=edit" title="Sjabloon bewerken"><img alt="Sjabloon bewerken" src="//upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr.svg/16px-OOjs_UI_icon_edit-ltr.svg.png" decoding="async" width="16" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr.svg/24px-OOjs_UI_icon_edit-ltr.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr.svg/32px-OOjs_UI_icon_edit-ltr.svg.png 2x" data-file-width="20" data-file-height="20" /></a></span></span></div></div> <div id="Geometrische_optica" class="navigatie-titel"><a href="/wiki/Geometrische_optica" title="Geometrische optica">Geometrische optica</a></div> <div class="navigatie-inhoud mw-collapsible-content"> <style data-mw-deduplicate="TemplateStyles:r67785531">.mw-parser-output .navigatie-tabel{margin:0 auto 0 auto;text-align:left}.mw-parser-output .navigatie-tabel .links{text-align:right}.mw-parser-output .navigatie-tabel .rechts{padding-left:0.5em}@media screen and (max-width:640px){.mw-parser-output .navigatie-tabel tr{display:grid;grid-template-columns:1fr;width:100%;margin-bottom:0.5em}.mw-parser-output .navigatie-tabel tr:last-of-type{margin-bottom:0}.mw-parser-output .navigatie-tabel .links{text-align:unset}.mw-parser-output .navigatie-tabel .rechts{padding:unset}}</style><table class="navigatie-tabel vatop" cellpadding="0" cellspacing="0" style=""><tbody><tr><td class="links" style=""><b>Basisbegrippen:</b></td><td class="rechts"><a href="/wiki/Apertuur" title="Apertuur">Apertuur</a> · <a href="/wiki/Beeld_(optica)" title="Beeld (optica)">Beeld</a> · <a href="/wiki/Beeldvlak_(optica)" title="Beeldvlak (optica)">Beeldvlak</a> · <a href="/wiki/Brandpunt_(optica)" title="Brandpunt (optica)">Brandpunt</a> · <a class="mw-selflink selflink">Brandpuntsafstand</a> · <a href="/wiki/Brekingsindex" title="Brekingsindex">Brekingsindex</a> · <a href="/wiki/Catadioptrisch_systeem" title="Catadioptrisch systeem">Catadioptrisch systeem</a> · <a href="/wiki/Concaaf" title="Concaaf">Concaaf</a> · <a href="/wiki/Contrast" title="Contrast">Contrast</a> · <a href="/wiki/Convergentie_en_divergentie" title="Convergentie en divergentie">Convergentie en divergentie</a> · <a href="/wiki/Convex" title="Convex">Convex</a> · <a href="/wiki/Diafragmagetal" title="Diafragmagetal">Diafragmagetal</a> · <a href="/wiki/Dioptrie" title="Dioptrie">Dioptrie</a> · <a href="/wiki/Fresnelvergelijkingen" title="Fresnelvergelijkingen">Fresnelvergelijkingen</a> · <a href="/wiki/Getal_van_Abbe" title="Getal van Abbe">Getal van Abbe</a> · <a href="/wiki/Glans" title="Glans">Glans</a> · <a href="/wiki/Hoekvergroting" title="Hoekvergroting">Hoekvergroting</a> · <a href="/wiki/Hoofdvlak" title="Hoofdvlak">Hoofdvlak</a> · <a href="/wiki/Intree-_en_uittreepupil" title="Intree- en uittreepupil">Intree- en uittreepupil</a> · <a href="/wiki/Lenzenformule" title="Lenzenformule">Lenzenformule</a> · <a href="/wiki/Lichtbreking" title="Lichtbreking">Lichtbreking</a> · <a href="/wiki/Openingshoek" title="Openingshoek">Openingshoek</a> · <a href="/wiki/Optische_as_(optica)" title="Optische as (optica)">Optische as</a> · <a href="/wiki/Parallax_(hoofdbetekenis)" class="mw-redirect" title="Parallax (hoofdbetekenis)">Parallax</a> · <a href="/wiki/Paraxiale_benadering" title="Paraxiale benadering">Paraxiale benadering</a> · <a href="/wiki/Reflectie_(straling)" title="Reflectie (straling)">Reflectie</a> · <a href="/wiki/Scheimpflug-principe" title="Scheimpflug-principe">Scheimpflug-principe</a> · <a href="/wiki/Spiegelbeeld_(reflectie)" title="Spiegelbeeld (reflectie)">Spiegelbeeld</a> · <a href="/wiki/Strehlverhouding" title="Strehlverhouding">Strehlverhouding</a> · <a href="/wiki/Totale_interne_reflectie" title="Totale interne reflectie">Totale interne reflectie</a> · <a href="/wiki/Virtueel_beeld" title="Virtueel beeld">Virtueel beeld</a> · <a href="/wiki/Wet_van_Snellius" title="Wet van Snellius">Wet van Snellius</a></td></tr><tr><td class="links"><b>Optische component:</b></td><td class="rechts"><a href="/wiki/Dunne_lens" title="Dunne lens">Dunne lens</a> · <a href="/wiki/Dikke_lens" title="Dikke lens">Dikke lens</a> · <a href="/wiki/Diafragma_(optica)" title="Diafragma (optica)">Diafragma</a> · <a href="/wiki/Flintglas" title="Flintglas">Flintglas</a> · <a href="/wiki/Fresnellens" title="Fresnellens">Fresnellens</a> · <a href="/wiki/Kroonglas_(optisch_glas)" title="Kroonglas (optisch glas)">Kroonglas</a> · <a href="/wiki/Lens_(optica)" title="Lens (optica)">Lens</a> · <a href="/wiki/Microlens_(optica)" title="Microlens (optica)">Microlens</a> · <a href="/wiki/Retroreflector" title="Retroreflector">Retroreflector</a> · <a href="/wiki/Spiegel_(optica)" title="Spiegel (optica)">Spiegel</a> · <a href="/wiki/Stralingsdeler" title="Stralingsdeler">Stralingsdeler</a></td></tr><tr><td class="links"><b>Asferische component:</b></td><td class="rechts"><a href="/wiki/Asferische_optiek" title="Asferische optiek">Asferische optiek</a> · <a href="/wiki/Cilindrische_lens" title="Cilindrische lens">Cilindrische lens</a> · <a href="/wiki/Lachspiegel" title="Lachspiegel">Lachspiegel</a> · <a href="/wiki/Paraboolreflector" title="Paraboolreflector">Paraboolreflector</a> · <a href="/wiki/Spiegeltelescoop#Schmidtcorrector" title="Spiegeltelescoop">Schmidtcorrector</a> · <a href="/wiki/Torische_lens" title="Torische lens">Torische lens</a></td></tr><tr><td class="links"><b>Lenzenstelsel:</b></td><td class="rechts"><a href="/wiki/Condensor_(optica)" title="Condensor (optica)">Condensor</a> · <a href="/wiki/Lenzenstelsel" title="Lenzenstelsel">Lenzenstelsel</a> · <a href="/wiki/Objectief_(optica)" title="Objectief (optica)">Objectief (optica)</a> · <a href="/wiki/Oculair" title="Oculair">Oculair</a> · <a href="/wiki/Retrofocus-_en_teleconstructie" title="Retrofocus- en teleconstructie">Retrofocus- en teleconstructie</a></td></tr><tr><td class="links"><b>Afbeeldingsfout:</b></td><td class="rechts"><a href="/wiki/Aberratie_(optica)" title="Aberratie (optica)">Afbeeldingsfouten</a> · <a href="/wiki/Astigmatisme_(optica)" title="Astigmatisme (optica)">Astigmatisme</a> · <a href="/wiki/Beeldveldwelving" title="Beeldveldwelving">Beeldveldwelving</a> · <a href="/wiki/Chromatische_aberratie" title="Chromatische aberratie">Chromatische aberratie</a> · <a href="/wiki/Coma_(optica)" title="Coma (optica)">Coma</a> · <a href="/wiki/Sferische_aberratie" title="Sferische aberratie">Sferische aberratie</a> · <a href="/wiki/Vertekening" title="Vertekening">Vertekening</a></td></tr><tr><td class="links"><span class="nowrap"><b>Toepassing (fotografie):</b></span></td><td class="rechts"><a href="/wiki/Fisheye-objectief" title="Fisheye-objectief">Fisheye-objectief</a> · <a href="/wiki/Fotografie" title="Fotografie">Fotografie</a> · <a href="/wiki/Groothoekobjectief" title="Groothoekobjectief">Groothoekobjectief</a> · <a href="/wiki/Macro-objectief" title="Macro-objectief">Macro-objectief</a> · <a href="/wiki/Pentaprisma" title="Pentaprisma">Pentaprisma</a> · <a href="/wiki/Standaardobjectief" title="Standaardobjectief">Standaardobjectief</a> · <a href="/wiki/Teleconverter" title="Teleconverter">Teleconverter</a> · <a href="/wiki/Teleobjectief" title="Teleobjectief">Teleobjectief</a> · <a href="/wiki/Tussenring" title="Tussenring">Tussenring</a> · <a href="/wiki/Vergrotingsapparaat" title="Vergrotingsapparaat">Vergrotingsapparaat</a> · <a href="/wiki/Vignettering" title="Vignettering">Vignettering</a> · <a href="/wiki/Voorzetlens" title="Voorzetlens">Voorzetlens</a> · <a href="/wiki/Zoomobjectief" title="Zoomobjectief">Zoomobjectief</a></td></tr><tr><td class="links"><b>(bril e.d.):</b></td><td class="rechts"><a href="/wiki/Antireflectiecoating" title="Antireflectiecoating">Antireflectiecoating</a> · <a href="/wiki/Bifocaal_brillenglas" title="Bifocaal brillenglas">Bifocaal brillenglas</a> · <a href="/wiki/Beeldschermbril" title="Beeldschermbril">Beeldschermbril</a> · <a href="/wiki/Bril_(hoofdbetekenis)" class="mw-redirect" title="Bril (hoofdbetekenis)">Bril</a> · <a href="/wiki/Contactlens" title="Contactlens">Contactlens</a> · <a href="/wiki/Intraoculaire_lens" title="Intraoculaire lens">Intraoculaire lens</a> · <a href="/wiki/Multifocaal_brillenglas" title="Multifocaal brillenglas">Multifocaal brillenglas</a> · <a href="/wiki/Nabijheidspunt" title="Nabijheidspunt">Nabijheidspunt</a> · <a href="/wiki/Oogmeting" title="Oogmeting">Oogmeting</a> · <a href="/wiki/Refractor_(optometrie)" title="Refractor (optometrie)">Refractor (optometrie)</a> · <a href="/wiki/Vertepunt" title="Vertepunt">Vertepunt</a></td></tr><tr><td class="links"><b>(microscoop):</b></td><td class="rechts"><a href="/wiki/Microscoop" title="Microscoop">Microscoop</a> · <a href="/wiki/Numerieke_apertuur" title="Numerieke apertuur">Numerieke apertuur</a> · <a href="/wiki/Olie-immersie" title="Olie-immersie">Olie-immersie</a> · <a href="/wiki/Stereomicroscoop" title="Stereomicroscoop">Stereomicroscoop</a></td></tr><tr><td class="links"><b>(projector):</b></td><td class="rechts"><a href="/wiki/Eidophor" title="Eidophor">Eidophor</a> · <a href="/wiki/Episcoop" title="Episcoop">Episcoop</a> · <a href="/wiki/Diaprojector" title="Diaprojector">Diaprojector</a> · <a href="/wiki/Filmprojector" title="Filmprojector">Filmprojector</a> · <a href="/wiki/Overheadprojector" title="Overheadprojector">Overheadprojector</a> · <a href="/wiki/Toverlantaarn" title="Toverlantaarn">Toverlantaarn</a> · <a href="/wiki/Videoprojector" title="Videoprojector">Videoprojector</a></td></tr><tr><td class="links"><span class="nowrap"><b>(telescoop e.d.):</b></span></td><td class="rechts"><a href="/wiki/Actieve_optiek" title="Actieve optiek">Actieve optiek</a> · <a href="/wiki/Astrograaf" title="Astrograaf">Astrograaf</a> · <a href="/wiki/Dobsontelescoop" title="Dobsontelescoop">Dobsontelescoop</a> · <a href="/wiki/Hollandse_kijker" title="Hollandse kijker">Hollandse kijker</a> · <a href="/wiki/Montering_(telescoop)" title="Montering (telescoop)">Montering</a> · <a href="/wiki/Newtontelescoop" title="Newtontelescoop">Newtontelescoop</a> · <a href="/wiki/Nulcorrector" title="Nulcorrector">Nulcorrector</a> · <a href="/wiki/Refractor_(telescoop)" title="Refractor (telescoop)">Refractor (telescoop)</a> · <a href="/wiki/Spiegeltelescoop" title="Spiegeltelescoop">Spiegeltelescoop (alle types)</a> · <a href="/wiki/Telescoop_(optica)" title="Telescoop (optica)">Telescoop</a> · <a href="/wiki/Verrekijker_(hoofdbetekenis)" class="mw-redirect" title="Verrekijker (hoofdbetekenis)">Verrekijker</a> · <a href="/wiki/Volgster" title="Volgster">Volgster</a></td></tr><tr><td class="links"><b>Algemene toepassing:</b></td><td class="rechts"><a href="/wiki/Achteruitkijkspiegel" title="Achteruitkijkspiegel">Achteruitkijkspiegel</a> · <a href="/wiki/Adaptieve_optiek" title="Adaptieve optiek">Adaptieve optiek</a> · <a href="/wiki/Barlowlens" title="Barlowlens">Barlowlens</a> · <a href="/wiki/Kaleidoscoop" class="mw-redirect" title="Kaleidoscoop">Kaleidoscoop</a> · <a href="/wiki/Eenrichtingsspiegel" title="Eenrichtingsspiegel">Eenrichtingsspiegel</a> · <a href="/wiki/Immersielithografie" title="Immersielithografie">Immersielithografie</a> · <a href="/wiki/Loep" title="Loep">Loep</a> · <a href="/wiki/Periscoop" title="Periscoop">Periscoop</a> · <a href="/wiki/Theodoliet" title="Theodoliet">Theodoliet</a> · <a href="/wiki/Waterpas_(landmeetkunde)" title="Waterpas (landmeetkunde)">Waterpasinstrument</a></td></tr></tbody></table> </div></div> <div class="interProject commons mw-list-item" style="display:none;"><a href="https://commons.wikimedia.org/wiki/Category:Focal_length#mw-subcategories" class="extiw" title="commons:Category:Focal length">Mediabestanden</a></div> <div class="interProjectTemplate interProject-groot toccolours" style="display:flex; gap:1em; align-items:center; clear:both; margin:1em 0 -0.5em 0;"> <div style="min-width:max-content;"><span class="noviewer noresize" typeof="mw:File"><a href="/wiki/Bestand:Commons-logo.svg" class="mw-file-description"><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/25px-Commons-logo.svg.png" decoding="async" width="25" height="34" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/38px-Commons-logo.svg.png 1.5x, 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