{"id":2948,"date":"2014-09-07T23:06:48","date_gmt":"2014-09-07T22:06:48","guid":{"rendered":"https:\/\/tipyjakfotit.cz\/?page_id=2948"},"modified":"2014-09-21T14:19:03","modified_gmt":"2014-09-21T13:19:03","slug":"svetelnost","status":"publish","type":"page","link":"https:\/\/tipyjakfotit.cz\/foto-slovnik\/svetelnost\/","title":{"rendered":"Sv\u011btelnost"},"content":{"rendered":"

T\u00e9m\u011b\u0159 v ka\u017ed\u00e9m \u010dl\u00e1nku tady na tipech najdete zm\u00ednku o sv\u011btelnosti \u010di clon\u011b. A co\u017ee to vlastn\u011b sv\u011btelnost je? Nic d\u016fle\u017eit\u011bj\u0161\u00edho ne\u017e jeden z kl\u00ed\u010dov\u00fdch parametr\u016f fotografick\u00fdch objektiv\u016f.<\/p>\n

\u00a0\"Sv\u011btelnost\"<\/a><\/p>\n

Sv\u011btelnost ozna\u010duje mno\u017estv\u00ed sv\u011btla, kter\u00e9 je objektiv schopn\u00fd vyu\u017e\u00edt. Je d\u00e1na pom\u011brem vstupn\u00ed \u010do\u010dky s\u00a0ohniskovou vzd\u00e1lenost\u00ed a ozna\u010duje se clonov\u00fdm \u010d\u00edslem (f). Pro ozna\u010den\u00ed objektivu se v\u017edy pou\u017e\u00edv\u00e1 nejvy\u0161\u0161\u00ed mo\u017en\u00e1 hodnota (nap\u0159. f\/2.8, 1:2.8, f\/3.5-4.5).<\/p>\n

\u00a0\"Sv\u011btelnost\"<\/a><\/p>\n

Z\u00e1kladn\u00ed pravidla jsou zhruba takov\u00e1 – \u010d\u00edm ni\u017e\u0161\u00ed clonov\u00e9 \u010d\u00edslo pou\u017eijete, t\u00edm je men\u0161\u00ed hloubka ostrosti a \u010d\u00edm je objektiv sv\u011bteln\u011bj\u0161\u00ed, t\u00edm kvalitn\u011bj\u0161\u00ed sn\u00edmky vykresluje. U objektiv\u016f s pevn\u00fdm ohniskem se za velmi kvalitn\u00ed hodnoty sv\u011btelnosti objekt\u016f pova\u017euje f 1.4, u zoomov\u00fdch objektiv\u016f pak f 2.8.<\/p>\n","protected":false},"excerpt":{"rendered":"

T\u00e9m\u011b\u0159 v ka\u017ed\u00e9m \u010dl\u00e1nku tady na tipech najdete zm\u00ednku o sv\u011btelnosti \u010di clon\u011b. A co\u017ee to vlastn\u011b sv\u011btelnost je? Nic d\u016fle\u017eit\u011bj\u0161\u00edho ne\u017e jeden z kl\u00ed\u010dov\u00fdch parametr\u016f fotografick\u00fdch objektiv\u016f. \u00a0 Sv\u011btelnost ozna\u010duje mno\u017estv\u00ed sv\u011btla, kter\u00e9 je objektiv schopn\u00fd vyu\u017e\u00edt. Je d\u00e1na pom\u011brem vstupn\u00ed \u010do\u010dky s\u00a0ohniskovou vzd\u00e1lenost\u00ed a ozna\u010duje se clonov\u00fdm \u010d\u00edslem (f). Pro ozna\u010den\u00ed objektivu se […]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":2599,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","meta":[],"_links":{"self":[{"href":"https:\/\/tipyjakfotit.cz\/wp-json\/wp\/v2\/pages\/2948"}],"collection":[{"href":"https:\/\/tipyjakfotit.cz\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/tipyjakfotit.cz\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/tipyjakfotit.cz\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/tipyjakfotit.cz\/wp-json\/wp\/v2\/comments?post=2948"}],"version-history":[{"count":0,"href":"https:\/\/tipyjakfotit.cz\/wp-json\/wp\/v2\/pages\/2948\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/tipyjakfotit.cz\/wp-json\/wp\/v2\/pages\/2599"}],"wp:attachment":[{"href":"https:\/\/tipyjakfotit.cz\/wp-json\/wp\/v2\/media?parent=2948"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}