{"id":4698,"date":"2015-05-11T19:58:30","date_gmt":"2015-05-11T18:58:30","guid":{"rendered":"https:\/\/tipyjakfotit.cz\/?p=4698"},"modified":"2015-05-11T20:14:36","modified_gmt":"2015-05-11T19:14:36","slug":"co-je-to-dslr-aneb-rozebrana-zrcadlovka","status":"publish","type":"post","link":"https:\/\/tipyjakfotit.cz\/co-je-to-dslr-aneb-rozebrana-zrcadlovka\/","title":{"rendered":"Co je to DSLR aneb rozebran\u00e1 zrcadlovka"},"content":{"rendered":"

V\u00edt\u00e1m V\u00e1s u prvn\u00edho ze s\u00e9rie \u010dl\u00e1nk\u016f, kter\u00e9 maj\u00ed za \u00fakol V\u00e1s bezpe\u010dn\u011b prov\u00e9st sv\u011btem fotografov\u00e1n\u00ed od za\u010d\u00e1tku do konce (tedy v p\u0159\u00edpad\u011b, \u017ee bychom p\u0159ipustili, \u017ee ve fotografii existuje konec). Za\u010d\u00ednat budeme zlehka – vyty\u010den\u00edm pojmu digit\u00e1ln\u00ed zrcadlovka. V n\u00e1sleduj\u00edc\u00edch \u010dl\u00e1nc\u00edch si pro V\u00e1s chyst\u00e1m rady ohledn\u011b koup\u011b vybaven\u00ed, zkr\u00e1tka nep\u0159ijdete ani p\u0159i lib\u016fstk\u00e1ch v nastaven\u00ed a nemus\u00edte se b\u00e1t ani o t\u00e9matick\u00e9 \u010dl\u00e1nky (t\u0159ikr\u00e1t hur\u00e1 pro tak obl\u00edbenou portr\u00e9tn\u00ed fotografii!).<\/p>\n

DSLR je zkratkou pro „Digital Single Lens Reflex“. Kdy\u017e to zjednodu\u0161\u00edme, jedn\u00e1 se o digit\u00e1ln\u00ed fotoapar\u00e1t, kter\u00fd vyu\u017e\u00edv\u00e1 zrc\u00e1tek p\u0159i nasm\u011brov\u00e1n\u00ed sv\u011btla z \u010do\u010dky do hled\u00e1\u010dku, \u010dili do magick\u00e9 d\u00edrky skrz kterou vid\u00edme fotografovan\u00e9.<\/p>\n

1. Z\u00a0\u010deho se DSLR skl\u00e1d\u00e1?<\/h3>\n

Pod\u00edvejme se na n\u00e1sleduj\u00edc\u00ed obr\u00e1zek, na kter\u00e9m vid\u00edme zjednodu\u0161en\u00fd \u0159ez DSLR:<\/p>\n

\"DSLR\"<\/a><\/p>\n

1. \u010co\u010dka
2. Reflexn\u00ed zrc\u00e1tko
3. Z\u00e1v\u011brka
4. Senzor\/sn\u00edma\u010d
5. Zaost\u0159ovac\u00ed matnice
6. Kondenza\u010dn\u00ed \u010do\u010dka
7.\u00a0Hranol\/pentaprism
8. Hled\u00e1\u010dek<\/h3>\n

 <\/p>\n

 <\/p>\n

2. Jak DSLR funguje?<\/h3>\n

Kdy\u017e se pod\u00edv\u00e1te skrz hled\u00e1\u010dek na zadn\u00ed stran\u011b fotoapar\u00e1tu, cokoliv co vid\u00edte, p\u0159enesete do fotografie. P\u0159edm\u011bt nebo sc\u00e9na, kterou se chyst\u00e1te vyfotografovat proch\u00e1z\u00ed objektivem ve form\u011b sv\u011btla a dopad\u00e1 na reflexn\u00ed zrc\u00e1tko (2), kter\u00e9 je um\u00edst\u011bno uvnit\u0159 t\u011bla fotoapar\u00e1tu v \u00fahlu 45\u00b0. To nasm\u011bruje sv\u011btlo (obraz) na optick\u00fd element naz\u00fdvan\u00fd pentaprism – hranol (7), kter\u00fd ho p\u0159evede z vertik\u00e1ln\u00ed do horizont\u00e1ln\u00ed polohy. Toto p\u0159esm\u011brov\u00e1n\u00ed prob\u00edh\u00e1 dal\u0161\u00edmi dv\u011bma odd\u011blen\u00fdmi zrc\u00e1tky, p\u0159\u00edmo do hled\u00e1\u010dku (8).<\/p>\n

 <\/p>\n

P\u0159i fotografov\u00e1n\u00ed se reflexn\u00ed zrc\u00e1tko (2) posune tak, aby propustilo sv\u011btlo, pot\u00e9 se otev\u0159e z\u00e1v\u011brka a tak dos\u00e1hne sv\u011btlo a\u017e na obrazov\u00fd sn\u00edma\u010d (4). Z\u00e1v\u011brka z\u016fst\u00e1v\u00e1 otev\u0159en\u00e1 po ur\u010ditou dobu a pot\u00e9 se reflexn\u00ed zrc\u00e1tko uzav\u0159e a znovu kles\u00e1 do \u00fahlu 45\u00b0 aby tak sm\u011brovalo obraz do hled\u00e1\u010dku.<\/p>\n

\"DSLR\"<\/a><\/p>\n

 <\/p>\n

Je z\u0159ejm\u00e9, \u017ee zde cel\u00fd proces nekon\u010d\u00ed. N\u00e1sleduje komplikovan\u00e9 zpracov\u00e1n\u00ed obrazu. Procesor fotoapar\u00e1tu p\u0159evezme informace z obrazov\u00e9ho sn\u00edma\u010de a p\u0159evede jej do vhodn\u00e9 velikosti, pak p\u0159ejde k samotn\u00e9mu zaps\u00e1n\u00ed na pam\u011b\u0165ovou kartu. Cel\u00fd proces trv\u00e1 minimum \u010dasu a n\u011bkter\u00e9 DSLR to zvl\u00e1dnou i 11x za sekundu!<\/p>\n

 <\/p>\n

Jedn\u00e1 se o opravdu stru\u010dn\u00e9 vysv\u011btlen\u00ed jak DSLR pracuj\u00ed.<\/p>\n

Pokud si chcete p\u0159e\u010d\u00edst o „zrcadlovk\u00e1ch“ v\u00edc, pokra\u010dujte na n\u00e1\u0161 foto-slovn\u00edk<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"

V\u00edt\u00e1m V\u00e1s u prvn\u00edho ze s\u00e9rie \u010dl\u00e1nk\u016f, kter\u00e9 maj\u00ed za \u00fakol V\u00e1s bezpe\u010dn\u011b prov\u00e9st sv\u011btem fotografov\u00e1n\u00ed od za\u010d\u00e1tku do konce (tedy v p\u0159\u00edpad\u011b, \u017ee bychom p\u0159ipustili, \u017ee ve fotografii existuje konec). Za\u010d\u00ednat budeme zlehka – vyty\u010den\u00edm pojmu digit\u00e1ln\u00ed zrcadlovka. V n\u00e1sleduj\u00edc\u00edch \u010dl\u00e1nc\u00edch si pro V\u00e1s chyst\u00e1m rady ohledn\u011b koup\u011b vybaven\u00ed, zkr\u00e1tka nep\u0159ijdete ani p\u0159i lib\u016fstk\u00e1ch […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[3],"tags":[],"_links":{"self":[{"href":"https:\/\/tipyjakfotit.cz\/wp-json\/wp\/v2\/posts\/4698"}],"collection":[{"href":"https:\/\/tipyjakfotit.cz\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tipyjakfotit.cz\/wp-json\/wp\/v2\/types\/post"}],"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=4698"}],"version-history":[{"count":0,"href":"https:\/\/tipyjakfotit.cz\/wp-json\/wp\/v2\/posts\/4698\/revisions"}],"wp:attachment":[{"href":"https:\/\/tipyjakfotit.cz\/wp-json\/wp\/v2\/media?parent=4698"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tipyjakfotit.cz\/wp-json\/wp\/v2\/categories?post=4698"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tipyjakfotit.cz\/wp-json\/wp\/v2\/tags?post=4698"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}