{"id":624,"date":"2016-03-18T12:20:07","date_gmt":"2016-03-18T12:20:07","guid":{"rendered":"http:\/\/localhost:8881\/?p=624"},"modified":"2025-12-25T10:00:36","modified_gmt":"2025-12-25T09:00:36","slug":"objectief-beeldhoeken","status":"publish","type":"post","link":"https:\/\/fotografeer.nl\/?p=624&lang=nl","title":{"rendered":"Objectief – Beeldhoeken"},"content":{"rendered":"\n

Beeldhoeken<\/h2>\n\n\n\n

Wanneer de brandpuntsafstand<\/a> toeneemt, neemt de beeldhoek<\/a> af.<\/p>\n\n\n

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In deze 4 foto’s is steeds verder ingezoomd van 70 tot 200 mm. In elke stap neemt de brandpuntsafstand toe en neemt de beeldhoek af.<\/p>\n\n\n\n

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\"70mm<\/figure>\n\n\n\n
\"90mm<\/figure>\n\n\n\n
\"155mm<\/figure>\n\n\n\n
\"200mm<\/figure>\n<\/figure>\n\n\n\n

Beeldhoek Berekening<\/h2>\n\n\n\n
\"\"
Veemarktstraat Breda
Grote beeldhoek en vertekening door gebruik van fisheye objectief<\/a>.<\/figcaption><\/figure>\n\n\n\n

De diagonale beeldhoek<\/a> \n \n \n \n \u03b1<\/mi>\n <\/mn>\n <\/msup>\n =<\/mo>\n\n 2 arctan<\/mi>\n <\/mn>\n <\/msup>\n <\/mo>\n \n \n \n d<\/mi>\n <\/mn>\n <\/mrow>\n \n 2f<\/mi>\n <\/mn>\n <\/mrow>\n <\/mfrac>\n \n <\/mrow>\n <\/math> wordt berekend aan de hand van de brandpuntsafstand<\/a> (\n \n f<\/mi>\n <\/mrow>\n <\/mn>\n <\/math>) en de diagonaal<\/a> (\n \n d<\/mi>\n <\/mrow>\n <\/mn>\n <\/math>) van het lichtgevoelig oppervlak<\/a>.<\/p>\n\n\n\n
\"Diagonale
Zie Wikimedia Commons – File:Beeldhoek.svg<\/a><\/figcaption><\/figure>\n\n\n\n

Afmetingen<\/h2>\n\n\n\n

De diagonaal<\/a> (\n \n d<\/mi>\n <\/mrow>\n <\/mn>\n <\/math>) kan worden bepaald aan de hand van de afmetingen van het lichtgevoelig oppervlak<\/a> met de stelling van Pythagoras<\/a> \n \n \n a<\/mi>2<\/mn><\/msup>\n +<\/mo>\nb<\/mi>2<\/mn><\/msup>\n =<\/mo>\nc<\/mi>2<\/mn><\/msup>\n <\/mrow>\n <\/math> \n . Of hier toegepast als \n\n \n d<\/mi>\n =<\/mo>\n \n\t\n\t b<\/mi>\n\t 2<\/mn>\n <\/msup>\n\t+<\/mo>\n\t\n\t h<\/mi>\n\t 2<\/mn>\n <\/msup>\n\t <\/msqrt>\n <\/mrow>\n<\/math>\n met de breedte (\n \n\t b<\/mi>\n <\/mn>\n <\/mrow>\n<\/math>) en hoogte (\n \n\t h<\/mi>\n\t <\/mn>\n <\/mrow>\n<\/math>) van het lichtgevoelig oppervlak<\/a>.<\/p>\n\n\n\n

Verhoudingen Lichtgevoelig Oppervlak<\/h2>\n\n\n\n

Deze afbeelding toont de verhoudingen tussen veelgebruikte film en sensor afmetingen.<\/p>\n\n\n\n

\"Sensor
Zie Wikimedia Commons – File:Sensor sizes overlaid inside.svg<\/a><\/figcaption><\/figure>\n\n\n\n

Smartphones en compact camera’s bereiken een steeds beter resolutie met kleinere sensoren. In het midden van het onderdeel zit een beeldsensor<\/a> van ~ 6.16 x 4.55 mm (1\/2.3”).<\/p>\n\n\n\n

\"CMOS
CMOS sensor uit een Canon SX230 HS<\/a> van 1\/2.3″ (~ 6.16 x 4.55 mm)<\/figcaption><\/figure>\n\n\n\n

Beeldhoek Tabel<\/h2>\n\n\n\n

De onderstaande tabel toont de veschillende beeldhoeken<\/a> voor veelgebruikte brandpuntsafstanden<\/a> bij een full-frame<\/a> (24×36 mm) formaat van het lichtgevoelig oppervlak<\/a>.<\/p>\n\n\n\n

Beeldhoek Tabel<\/summary>\n
Brandpunts
afstand (f)<\/em><\/td>		Horizontale
beeldhoek<\/em><\/td>		Verticale
beeldhoek<\/em><\/td>		Diagonale
beeldhoek<\/em><\/td>		Type<\/em><\/td>Lichtgevoelig
Oppervlak<\/em><\/td>		Opmerkingen<\/em><\/td><\/tr>
0 mm<\/td>180\u00b0<\/td>180\u00b0<\/td>180\u00b0<\/td>Fish-eye<\/td>24×36 mm<\/td>Hypothetisch<\/em><\/td><\/tr>
4.5 mm<\/td>151.93\u00b0<\/td>138.89\u00b0<\/td>156.5\u00b0<\/td>Fish-eye<\/td>24×36 mm<\/td><\/td><\/tr>
8 mm<\/td>132.08\u00b0<\/td>112.62\u00b0<\/td>139.41\u00b0<\/td>Fish-eye<\/td>24×36 mm<\/td><\/td><\/tr>
10 mm<\/td>121.89\u00b0<\/td>100.39\u00b0<\/td>130.38\u00b0<\/td>Fish-eye<\/td>24×36 mm<\/td><\/td><\/tr>
14 mm<\/td>104.25\u00b0<\/td>81.2\u00b0<\/td>114.18\u00b0<\/td>Fish-eye<\/td>24×36 mm<\/td><\/td><\/tr>
24 mm<\/td>73.74\u00b0<\/td>53.13\u00b0<\/td>84.06\u00b0<\/td>Groothoek<\/td>24×36 mm<\/td><\/td><\/tr>
35 mm<\/td>54.43\u00b0<\/td>37.85\u00b0<\/td>63.44\u00b0<\/td>Groothoek<\/td>24×36 mm<\/td><\/td><\/tr>
50 mm<\/td>39.6\u00b0<\/td>26.99\u00b0<\/td>46.79\u00b0<\/td>Normaal<\/td>24×36 mm<\/td>Vergelijkbaar met beeldhoek van het menselijk oog<\/td><\/tr>
70 mm<\/td>28.84\u00b0<\/td>19.46\u00b0<\/td>34.35\u00b0<\/td>Licht Tele<\/td>24×36 mm<\/td><\/td><\/tr>
85 mm<\/td>23.91\u00b0<\/td>16.07\u00b0<\/td>28.56\u00b0<\/td>Licht Tele<\/td>24×36 mm<\/td><\/td><\/tr>
105 mm<\/td>19.46\u00b0<\/td>13.04\u00b0<\/td>23.28\u00b0<\/td>Licht Tele<\/td>24×36 mm<\/td><\/td><\/tr>
135 mm<\/td>15.19\u00b0<\/td>10.16\u00b0<\/td>18.21\u00b0<\/td>Tele<\/td>24×36 mm<\/td><\/td><\/tr>
200 mm<\/td>10.29\u00b0<\/td>6.87\u00b0<\/td>12.35\u00b0<\/td>Tele<\/td>24×36 mm<\/td><\/td><\/tr>
300 mm<\/td>6.87\u00b0<\/td>4.58\u00b0<\/td>8.25\u00b0<\/td>Super Tele<\/td>24×36 mm<\/td><\/td><\/tr>
400 mm<\/td>5.15\u00b0<\/td>3.44\u00b0<\/td>6.19\u00b0<\/td>Super Tele<\/td>24×36 mm<\/td><\/td><\/tr>
600 mm<\/td>3.44\u00b0<\/td>2.29\u00b0<\/td>4.13\u00b0<\/td>Super Tele<\/td>24×36 mm<\/td><\/td><\/tr>
800 mm<\/td>2.58\u00b0<\/td>1.72\u00b0<\/td>3.1\u00b0<\/td>Super Tele<\/td>24×36 mm<\/td><\/td><\/tr>
1200 mm<\/td>1.72\u00b0<\/td>1.15\u00b0<\/td>2.07\u00b0<\/td>Super Tele<\/td>24×36 mm<\/td><\/td><\/tr><\/tbody><\/table><\/figure>\n<\/details>\n","protected":false},"excerpt":{"rendered":"

Waneer de brandpuntsafstand toeneemt, neemt de beeldhoek af.<\/p>\n","protected":false},"author":2,"featured_media":709,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"categories":[32],"tags":[76],"class_list":["post-624","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-fotografeer-tips","tag-objectief___nl"],"lang":"nl","translations":{"nl":624,"en":622},"pll_sync_post":[],"_links":{"self":[{"href":"https:\/\/fotografeer.nl\/index.php?rest_route=\/wp\/v2\/posts\/624","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fotografeer.nl\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fotografeer.nl\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fotografeer.nl\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/fotografeer.nl\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=624"}],"version-history":[{"count":48,"href":"https:\/\/fotografeer.nl\/index.php?rest_route=\/wp\/v2\/posts\/624\/revisions"}],"predecessor-version":[{"id":3250,"href":"https:\/\/fotografeer.nl\/index.php?rest_route=\/wp\/v2\/posts\/624\/revisions\/3250"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/fotografeer.nl\/index.php?rest_route=\/wp\/v2\/media\/709"}],"wp:attachment":[{"href":"https:\/\/fotografeer.nl\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=624"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fotografeer.nl\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=624"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fotografeer.nl\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=624"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}