Con ng\u01b0\u1eddi c\u1ea3m nh\u1eadn th\u1ebf gi\u1edbi mu\u00f4n m\u00e0u mu\u00f4n v\u1ebb b\u1eb1ng con m\u1eaft, c\u00f2n m\u00e1y \u1ea3nh th\u00ec ch\u1ee5p l\u1ea5y c\u1ea3nh v\u1eadt \u0111\u1eb9p b\u1eb1ng \u1ed1ng k\u00ednh. Trong h\u01a1n m\u1ed9t th\u1ebf k\u1ec9 t\u1eeb khi k\u1ef9 thu\u1eadt ch\u1ee5p \u1ea3nh ra \u0111\u1eddi cho \u0111\u1ebfn nay, m\u00e1y \u1ea3nh \u0111\u00e3 t\u1eeb m\u1ed9t c\u00e1i h\u00f2m g\u1ed7 \u0111\u01a1n gi\u1ea3n c\u1ed5 l\u1ed7 ph\u00e1t tri\u1ec3n th\u00e0nh c\u00e1i m\u00e1y \u1ea3nh \u0111i\u1ec7n t\u1eed hi\u1ec7n t\u1ea1i c\u00f3 nhi\u1ec1u ch\u1ee9c n\u0103ng \u0111\u1eb7c bi\u1ec7t nh\u01b0 t\u1ef1 \u0111\u1ed9ng ch\u1ecdn ti\u00eau \u0111i\u1ec3m, t\u1ef1 \u0111\u1ed9ng l\u00f3e s\u00e1ng, bi\u1ebfn \u0111\u1ed5i ti\u00eau c\u1ef1 \u0111i\u1ec7n \u0111\u1ed9ng. Th\u1ebf nh\u01b0ng cho d\u00f9 v\u1ebb ngo\u00e0i c\u1ee7a m\u00e1y \u1ea3nh c\u00f3 thay \u0111\u1ed5i \u0111\u1ebfn \u0111\u00e2u, linh ki\u1ec7n b\u00ean trong c\u00f3 \u0111i\u1ec7n t\u1eed h\u00f3a \u0111\u1ebfn \u0111\u00e2u th\u00ec n\u00f3 v\u1eabn tu\u00e2n theo nguy\u00ean l\u00ed l\u1ea5y \u1ea3nh c\u1ee7a 100 n\u0103m tr\u01b0\u1edbc: l\u00fac ch\u1ee5p v\u1eabn t\u1eadp trung ti\u00eau \u0111i\u1ec3m \u00e1nh s\u00e1ng ph\u1ea3n x\u1ea1 c\u1ee7a c\u1ea3nh v\u1eadt b\u1eb1ng \u1ed1ng k\u00ednh c\u1eeda ch\u1edbp (shutter) \u0111\u1ec3 chi\u1ebfu l\u00ean phim. Ch\u1ea5t c\u1ea3m quang tr\u00ean phim do v\u1eady s\u1ebd c\u00f3 \u0111\u01b0\u1ee3c \u1ea3nh do c\u00f3 s\u1ef1 bi\u1ebfn \u0111\u1ed5i h\u00f3a h\u1ecdc. Cu\u1ed9n phim ch\u1ee5p xong \u0111\u01b0a \u0111\u1ebfn hi\u1ec7u \u1ea3nh l\u1ea1i qua m\u1ed9t v\u00f2ng x\u1eed l\u00ed h\u00f3a m\u1edbi c\u00f3 \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3 c\u00e1c h\u00ecnh \u1ea3nh cu\u1ed1i c\u00f9ng. Ch\u00ednh \u0111\u00f3 l\u00e0 nh\u1eefng b\u1ee9c \u1ea3nh ch\u00fang ta th\u01b0\u1eddng th\u1ea5y.<\/p>\n\n\n\n
M\u00e1y \u1ea3nh s\u1ed1 tuy v\u1eabn ch\u1ee5p c\u1ea3nh v\u1eadt d\u1ef1a v\u00e0o \u1ed1ng k\u00ednh c\u1eeda ch\u1edbp. Th\u1ebf nh\u01b0ng m\u00f4i gi\u1edbi c\u1ea3m quang kh\u00f4ng ph\u1ea3i l\u00e0 cu\u1ed9n phim c\u00f3 tr\u00e1ng l\u1edbp ch\u1ea5t c\u1ea3m quang, m\u00e0 l\u00e0 b\u1ed9 c\u1ea3m tr\u1eafc h\u00ecnh \u1ea3nh ki\u1ec3u \u0111i\u1ec7n t\u1eed. B\u1ed9 c\u1ea3m tr\u1eafc n\u00e0y tr\u1ef1c ti\u1ebfp chuy\u1ec3n tia s\u00e1ng ph\u1ea3n x\u1ea1 c\u1ea3nh v\u1eadt th\u00e0nh t\u00edn hi\u1ec7u s\u1ed1. Sau \u0111\u00f3, ti\u1ebfp t\u1ee5c x\u1eed l\u00ed v\u00e0 l\u01b0u tr\u1eef. B\u1edfi th\u1ebf, m\u00e1y \u1ea3nh s\u1ed1 kh\u00f4ng d\u00f9ng phim m\u00e0 d\u00f9ng card l\u01b0u tr\u1eef ch\u1edbp nhanh. Do h\u00ecnh \u1ea3nh c\u1ea3nh v\u1eadt \u0111\u00e3 bi\u1ebfn th\u00e0nh tin s\u1ed1 h\u00f3a m\u00e0 m\u00e1y \u1ea3nh s\u1ed1 c\u00f3 th\u1ec3 k\u1ebft n\u1ed1i v\u1edbi m\u00e1y t\u00ednh c\u00e1 nh\u00e2n \u0111\u1ec3 s\u1eed d\u1ee5ng ph\u1ed1i h\u1ee3p.<\/p>\n\n\n\n
M\u00e1y \u1ea3nh s\u1ed1 \u0111\u00e3 khi\u1ebfn cho ch\u1ee5p \u1ea3nh kh\u00f4ng c\u00f2n h\u1ea1n ch\u1ebf b\u1edfi vi\u1ec7c ph\u01a1i m\u1ed9t t\u1ea5m \u1ea3nh m\u00e0 c\u00f3 th\u1ec3 b\u1eb1ng m\u00e1y t\u00ednh \u0111\u1ec3 tu b\u1ed5 v\u1ec1 s\u1eafc m\u00e0u, \u0111\u1ed9 s\u00e1ng, \u0111\u01b0\u1eddng n\u00e9t cho t\u1ea5m \u1ea3nh \u0111\u00e3 ch\u1ee5p. Th\u1eadm ch\u00ed c\u00f3 th\u1ec3 t\u1ea1o ra hi\u1ec7u qu\u1ea3 ho\u00e0n to\u00e0n kh\u00e1c v\u1edbi h\u00ecnh \u1ea3nh ban \u0111\u1ea7u.<\/p>\n\n\n\n
Qu\u00e1 tr\u00ecnh ch\u1ee5p c\u1ee7a m\u00e1y \u1ea3nh s\u1ed1 c\u00f3 th\u1ec3 chia ra ba ph\u1ea7n l\u1edbn l\u00e0 \u0111\u01b0a v\u00e0o, x\u1eed l\u00ed v\u00e0 \u0111\u01b0a ra.<\/p>\n\n\n\n
\u0110\u01b0a \u1ea3nh v\u00e0o. \u1ea3nh \u0111\u01b0a v\u00e0o \u0111\u01b0\u1ee3c x\u1eed l\u00ed s\u1ed1 h\u00f3a \u0111\u00f3 l\u00e0 \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a h\u1ec7 th\u1ed1ng ch\u1ee5p \u1ea3nh s\u1ed1. M\u1ee5c \u0111\u00edch l\u00e0 \u0111\u1ec3 \u1ea3nh ch\u1ee5p chuy\u1ec3n \u0111\u1ed5i th\u00e0nh th\u00f4ng tin s\u1ed1 m\u00e0 m\u00e1y t\u00ednh c\u00f3 th\u1ec3 x\u1eed l\u00ed. M\u00e1y \u1ea3nh s\u1ed1 b\u1ea3n th\u00e2n \u0111\u00e3 c\u00f3 th\u1ec3 ti\u1ebfn h\u00e0nh s\u1ed1 h\u00f3a \u1ea3nh ch\u1ee5p, \u00e1p d\u1ee5ng CCD \u0111\u1ec3 ti\u1ebfp nh\u1eadn t\u00edn hi\u1ec7u \u1ea3nh.<\/p>\n\n\n\n
X\u1eed l\u00ed h\u00ecnh \u1ea3nh. Vi\u1ec7c x\u1eed l\u00ed h\u00ecnh \u1ea3nh ch\u1ee7 y\u1ebfu l\u00e0 vi\u1ec7c ch\u1ec9nh s\u1eeda v\u00e0 t\u00e1i s\u00e1ng t\u1ea1o h\u00ecnh \u1ea3nh s\u1ed1 \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o m\u00e1y t\u00ednh. Hi\u1ec7n nay c\u00f3 th\u1ec3 d\u00f9ng ph\u1ea7n m\u1ec1m Photo Enhancer, Photoshop \u0111\u1ec3 x\u1eed l\u00ed k\u1ef9 thu\u1eadt \u0111\u1eb7c bi\u1ec7t nh\u01b0 l\u00f3e s\u00e1ng, t\u01b0\u01a1ng ph\u1ea3n, m\u00e0u s\u1eafc, c\u1eaft b\u1ecf, ph\u00f3ng \u0111\u1ea1i ho\u1eb7c thu nh\u1ecf h\u00ecnh \u1ea3nh, l\u1eadt trang, n\u1ed1i gh\u00e9p, h\u1ee3p th\u00e0nh, thay \u0111\u1ed5i b\u1ed1i c\u1ea3nh, bi\u1ebfn h\u00ecnh, hi\u1ec7u qu\u1ea3 ph\u00f9 \u0111i\u00eau, hi\u1ec7u qu\u1ea3 mosaic. T\u1ea5t c\u1ea3 nh\u1eefng vi\u1ec7c \u0111\u00f3 th\u00ec ch\u1ee5p \u1ea3nh truy\u1ec1n th\u1ed1ng kh\u00f4ng th\u1ec3 l\u00e0m \u0111\u01b0\u1ee3c.<\/p>\n\n\n\n
\u0110\u01b0a h\u00ecnh \u1ea3nh ra. Vi\u1ec7c \u0111\u01b0a h\u00ecnh \u1ea3nh ra l\u00e0 ch\u1ec9 qu\u00e1 tr\u00ecnh hi\u1ec3n th\u1ecb t\u1ea5m \u1ea3nh b\u1eb1ng thi\u1ebft b\u1ecb n\u00e0o \u0111\u00f3 trong qu\u00e1 tr\u00ecnh ch\u1ee5p \u1ea3nh s\u1ed1. Thi\u1ebft b\u1ecb hi\u1ec3n th\u1ecb th\u01b0\u1eddng d\u00f9ng l\u00e0 b\u1ed9 hi\u1ec3n th\u1ecb, laze hi\u1ec7u qu\u1ea3 ph\u00e2n bi\u1ec7t cao ho\u1eb7c m\u00e1y in phun. C\u0169ng c\u00f3 th\u1ec3 b\u1eb1ng thi\u1ebft b\u1ecb ghi phim s\u1ed1 chuy\u00ean d\u00f9ng \u0111\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c phim \u00e2m b\u1ea3n m\u00e0u truy\u1ec1n th\u1ed1ng ho\u1eb7c \u1ea3nh d\u01b0\u01a1ng b\u1ea3n. Ho\u1eb7c l\u00e0 b\u1eb1ng m\u00e1y ch\u1ee5p h\u00ecnh \u1ea3nh s\u1ed1 (c\u00f2n g\u1ecdi l\u00e0 m\u00e1y in s\u1ed1) \u0111\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c t\u1ea5m \u1ea3nh m\u00e0u truy\u1ec1n th\u1ed1ng.<\/p>\n\n\n\n
T\u1eeb kh\u00f3a: M\u00e1y \u1ea3nh s\u1ed1.<\/p>\n","protected":false},"excerpt":{"rendered":"
Con ng\u01b0\u1eddi c\u1ea3m nh\u1eadn th\u1ebf gi\u1edbi mu\u00f4n m\u00e0u mu\u00f4n v\u1ebb b\u1eb1ng con m\u1eaft, c\u00f2n m\u00e1y \u1ea3nh th\u00ec ch\u1ee5p l\u1ea5y c\u1ea3nh v\u1eadt \u0111\u1eb9p b\u1eb1ng \u1ed1ng k\u00ednh. Trong h\u01a1n m\u1ed9t th\u1ebf k\u1ec9 t\u1eeb khi k\u1ef9 thu\u1eadt ch\u1ee5p \u1ea3nh ra \u0111\u1eddi cho \u0111\u1ebfn nay, m\u00e1y \u1ea3nh \u0111\u00e3 t\u1eeb m\u1ed9t c\u00e1i h\u00f2m g\u1ed7 \u0111\u01a1n gi\u1ea3n c\u1ed5 l\u1ed7 ph\u00e1t tri\u1ec3n […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[15,13],"tags":[],"class_list":["post-10410","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc","category-tin-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/10410","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=10410"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/10410\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=10410"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=10410"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=10410"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}