{"id":5962,"date":"2021-11-20T10:16:01","date_gmt":"2021-11-20T03:16:01","guid":{"rendered":"https:\/\/www.vietlearn.org\/post\/?p=5962"},"modified":"2021-11-20T13:24:08","modified_gmt":"2021-11-20T06:24:08","slug":"vi-sao-may-chup-mot-lan-thanh-anh-sau-khi-chup-la-co-the-lay-anh-ngay","status":"publish","type":"post","link":"https:\/\/www.vietlearn.org\/kien-thuc\/vi-sao-may-chup-mot-lan-thanh-anh-sau-khi-chup-la-co-the-lay-anh-ngay\/","title":{"rendered":"V\u00ec sao m\u00e1y ch\u1ee5p m\u1ed9t l\u1ea7n th\u00e0nh \u1ea3nh sau khi ch\u1ee5p l\u00e0 c\u00f3 th\u1ec3 l\u1ea5y \u1ea3nh ngay?"},"content":{"rendered":"\n

Nguy\u00ean l\u00ed c\u00f4ng t\u00e1c c\u1ee7a vi\u1ec7c ch\u1ee5p \u1ea3nh kh\u00f4ng c\u00f2n l\u00e0 \u0111i\u1ec1u b\u00ed m\u1eadt n\u1eefa. Tr\u00ean phim ch\u1ee5p \u1ea3nh c\u00f3 ph\u1ebft m\u1ed9t l\u1edbp nguy\u00ean li\u1ec7u c\u1ea3m quang – nh\u0169 t\u01b0\u01a1ng b\u1ea1c halogenua. Sau khi c\u1ea3m quang, n\u00f3 s\u1ebd l\u01b0u l\u1ea1i h\u00ecnh \u1ea3nh \u1ea9n. B\u1ea1c halogenua b\u1ecb c\u1ea3m quang, d\u01b0\u1edbi t\u00e1c \u0111\u1ed9ng c\u1ee7a n\u01b0\u1edbc thu\u1ed1c hi\u1ec7n h\u00ecnh, ho\u00e0n nguy\u00ean th\u00e0nh b\u1ea1c kim lo\u1ea1i, bi\u1ebfn th\u00e0nh h\u1ea1t m\u00e0u \u0111en, x\u1ebfp \u0111\u1ed1ng tr\u00ean n\u1ec1n phim. S\u1ed1 l\u01b0\u1ee3ng b\u1ea1c ho\u00e0n nguy\u00ean \u0111\u01b0\u1ee3c quy\u1ebft \u0111\u1ecbnh b\u1edfi c\u01b0\u1eddng \u0111\u1ed9 c\u1ea3m quang. Ch\u1ed7 c\u1ea3m quang m\u1ea1nh th\u00ec h\u1ea1t b\u1ea1c ho\u00e0n nguy\u00ean nhi\u1ec1u, ch\u1ed7 c\u1ea3m quang y\u1ebfu th\u00ec h\u1ea1t b\u1ea1c ho\u00e0n nguy\u00ean \u00edt. Nh\u01b0 v\u1eady l\u00e0 tr\u00ean phim c\u00f3 th\u1ec3 h\u00ecnh th\u00e0nh h\u00ecnh \u1ea3nh v\u1eadt th\u1ec3 c\u00f3 t\u1ea7ng l\u1edbp s\u00e1ng t\u1ed1i. M\u1ee9c \u0111\u1ed9 \u0111en tr\u1eafng c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn h\u00ecnh \u1ea3nh tr\u00ean phim v\u1eeba \u0111\u00fang ng\u01b0\u1ee3c l\u1ea1i v\u1edbi m\u1ee9c \u0111\u1ed9 s\u00e1ng t\u1ed1i c\u1ee7a v\u1eadt th\u1ec3 \u0111\u01b0\u1ee3c ch\u1ee5p, t\u1ee9c l\u00e0 b\u1ed9 ph\u1eadn s\u00e1ng c\u1ee7a v\u1eadt th\u1ec3, tr\u00ean phim hi\u1ec7n ra m\u00e0u \u0111en, c\u00f2n b\u1ed9 ph\u1eadn t\u1ed1i c\u1ee7a v\u1eadt th\u1ec3, tr\u00ean phim hi\u1ec7n ra trong su\u1ed1t. Lo\u1ea1i h\u00ecnh \u1ea3nh n\u00e0y g\u1ecdi l\u00e0 “\u1ea3nh \u00e2m”, lo\u1ea1i phim n\u00e0y g\u1ecdi l\u00e0 “phim \u00e2m”.<\/p>\n\n\n\n

B\u1ea1c halogenua kh\u00f4ng b\u1ecb ho\u00e0n nguy\u00ean tr\u00ean phim s\u1ebd tr\u00f4i h\u1ebft trong qu\u00e1 tr\u00ecnh x\u1ed1i r\u1eeda. N\u1ebfu ch\u00fang kh\u00f4ng b\u1ecb r\u1eeda tr\u00f4i th\u00ec m\u1ee9c \u0111\u1ed9 \u0111\u1eadm nh\u1ea1t c\u1ee7a h\u00ecnh \u1ea3nh h\u00ecnh th\u00e0nh l\u00ean v\u1eeba \u0111\u00fang ng\u01b0\u1ee3c l\u1ea1i v\u1edbi b\u1ea1c halogenua c\u1ee7a \u1ea3nh \u00e2m h\u00ecnh th\u00e0nh do ho\u00e0n nguy\u00ean, l\u00e0 m\u1ed9t b\u1ee9c \u1ea3nh chung. N\u1ebfu nh\u01b0 kh\u00f4ng r\u1eeda s\u1ea1ch s\u1ed1 b\u1ea1c halogenua \u0111\u00f3 m\u00e0 l\u00e0 gi\u1eef nguy\u00ean ch\u1ed7 v\u00e0 s\u1ed1 l\u01b0\u1ee3ng v\u1ed1n c\u00f3 c\u1ee7a ch\u00fang r\u1ed3i khu\u1ebfch t\u00e1n \u0111\u1ebfn m\u1ed9t t\u1ea5m phim kh\u00e1c, sau \u0111\u00f3 ti\u1ebfn h\u00e0nh hi\u1ec7n h\u00ecnh, \u0111\u1ecbnh h\u00ecnh, th\u1ebf ch\u1eb3ng ph\u1ea3i l\u00e0 c\u00f3 th\u1ec3 nh\u1eadn \u0111\u01b0\u1ee3c m\u1ed9t t\u1ea5m \u1ea3nh d\u01b0\u01a1ng hay sao?<\/p>\n\n\n\n

V\u1eadt li\u1ec7u c\u1ea3m quang c\u1ee7a m\u1ed9t l\u1ea7n th\u00e0nh \u1ea3nh do hai lo\u1ea1i n\u1ec1n phim t\u1ed5 th\u00e0nh. N\u1ec1n phim c\u1ee7a l\u1edbp m\u1eb7t tr\u00ean l\u00e0 phim \u00e2m, b\u1ec1 m\u1eb7t c\u1ee7a n\u00f3 c\u00f3 b\u00f4i ch\u1ea5t c\u1ea3m quang b\u1ea1c halogenua l\u1edbp m\u1ecfng, h\u00e0m l\u01b0\u1ee3ng b\u1ea1c cao. N\u1ebfu phim c\u1ee7a l\u1edbp b\u00ean d\u01b0\u1edbi l\u00e0 phim d\u01b0\u01a1ng, b\u1ec1 m\u1eb7t c\u00f3 b\u00f4i m\u1ed9t l\u1edbp ti\u1ebfp th\u1ee5 do than ho\u1ea1t t\u00ednh, sunfua, ch\u1ea5t keo v.v. t\u1ed5 th\u00e0nh. Gi\u1eefa hai l\u1edbp n\u1ec1n phim \u0111\u01b0\u1ee3c ng\u0103n b\u1edfi m\u1ed9t t\u00fai ch\u1ea5t d\u1ebbo c\u00f3 ch\u1ee9a d\u1ecbch th\u1ec3 thu\u1ed1c \u0111\u1eadm \u0111\u1eb7c. Th\u1ee9 n\u00e0y do ch\u1ea5t hi\u1ec7n h\u00ecnh, ch\u1ea5t \u0111\u1ecbnh h\u00ecnh, dung d\u1ecbch b\u1ea1c halogenua, ch\u1ea5t keo ph\u1ed1i ch\u1ebf m\u00e0 th\u00e0nh. Phim \u00e2m sau khi b\u1ecb c\u1ea3m quang, hai l\u1edbp n\u1ec1n phim \u0111\u1ed3ng th\u1eddi b\u1ecb m\u1ed9t c\u1eb7p tr\u1ee5c l\u0103n \u00e9p qua, t\u00fai ch\u1ea5t d\u1ebbo b\u1ecb d\u1ed3n n\u00e9n r\u00e1ch, d\u1ecbch th\u1ec3 thu\u1ed1c \u0111\u1eadm \u0111\u1eb7c tr\u1ea3i \u0111\u1ec1u tr\u00ean m\u1eb7t gh\u00e9p ch\u1ed3ng nhau c\u1ee7a phim \u00e2m v\u00e0 phim d\u01b0\u01a1ng. Khi \u1ea5y gi\u1eefa phim \u00e2m, d\u01b0\u01a1ng x\u1ea3y ra m\u1ed9t lo\u1ea1t ph\u1ea3n \u1ee9ng ho\u00e1 h\u1ecdc nhanh ch\u00f3ng. Trong l\u1edbp nh\u0169 t\u01b0\u01a1ng c\u1ee7a phim \u00e2m, b\u1ea1c halogenua c\u1ee7a b\u1ed9 ph\u1eadn c\u1ea3m quang ho\u00e0n nguy\u00ean sinh ra b\u1ea1c kim lo\u1ea1i, \u1edf l\u1ea1i tr\u00ean phim \u00e2m, b\u1ea1c halogenua c\u1ee7a b\u1ed9 ph\u1eadn ch\u01b0a c\u1ea3m quang b\u1ecb d\u1ecbch th\u1ec3 thu\u1ed1c ho\u00e0 tan, khu\u1ebfch t\u00e1n \u0111\u1ebfn l\u1edbp ti\u1ebfp th\u1ee5 c\u1ee7a phim d\u01b0\u01a1ng, ti\u1ebfp x\u00fac v\u1edbi ch\u1ea5t x\u00fac t\u00e1c b\u1ea1c sunfua trong l\u1edbp ti\u1ebfp th\u1ee5, ho\u00e0n nguy\u00ean th\u00e0nh b\u1ea1c kim lo\u1ea1i, h\u00ecnh th\u00e0nh phim d\u01b0\u01a1ng m\u00e0 ch\u00fang ta c\u1ea7n tr\u00ean n\u1ec1n phim c\u1ee7a l\u1edbp th\u1ee9 hai. Nh\u01b0 v\u1eady l\u00e0 nh\u1eadn \u0111\u01b0\u1ee3c m\u1ed9t t\u1ea5m \u1ea3nh \u0111en tr\u1eafng. C\u00f2n nh\u01b0 \u1ea3nh m\u00e0u c\u1ee7a m\u1ed9t l\u1ea7n th\u00e0nh \u1ea3nh, nguy\u00ean l\u00ed c\u01a1 b\u1ea3n c\u1ee7a n\u00f3 c\u0169ng gi\u1ed1ng th\u1ebf. C\u00f3 \u0111i\u1ec1u v\u1eadt li\u1ec7u c\u1ea3m quang c\u1ee7a n\u00f3 v\u00e0 qu\u00e1 tr\u00ecnh ph\u1ea3n \u1ee9ng ho\u00e1 h\u1ecdc ph\u1ee9c t\u1ea1p h\u01a1n nhi\u1ec1u v\u1edbi \u1ea3nh \u0111en tr\u1eafng.<\/p>\n\n\n\n

So s\u00e1nh v\u1edbi m\u00e1y \u1ea3nh th\u00f4ng th\u01b0\u1eddng, thi\u1ebft k\u1ebf<\/a> c\u1ee7a c\u1eeda s\u1eadp v\u00e0 \u1ed1ng k\u00ednh c\u1ee7a m\u00e1y \u1ea3nh m\u1ed9t l\u1ea7n th\u00e0nh \u1ea3nh kh\u00f4ng c\u00f3 g\u00ec kh\u00e1c, song th\u00e2n m\u00e1y l\u1eafp phim nh\u1ef1a th\u00ec kh\u00f4ng gi\u1ed1ng v\u1edbi lo\u1ea1i th\u01b0\u1eddng. \u0110\u1ec3 quay in v\u00e0 \u00e9p v\u1ee1 t\u00fai \u0111\u1ef1ng d\u1ecbch th\u1ec3 thu\u1ed1c, tr\u00ean th\u00e2n m\u00e1y c\u00f3 m\u1ed9t c\u1eb7p tr\u1ee5c l\u0103n in\u1ed1c, n\u1ec1n phim \u00e2m, d\u01b0\u01a1ng \u0111i qua s\u1ef1 nghi\u1ec1n \u00e9p c\u1ee7a c\u1eb7p tr\u1ee5c l\u0103n \u0111\u00f3.<\/p>\n\n\n\n

Phim nh\u1ef1a c\u1ee7a m\u1ed9t l\u1ea7n th\u00e0nh \u1ea3nh \u0111\u1ec3 trong h\u1ed9p, m\u1ed7i h\u1ed9p c\u00f3 t\u00e1m t\u1ea5m. Khi ch\u1ee5p \u1ea3nh, h\u1ed9p phim l\u1eafp \u1edf \u0111\u1eb1ng sau th\u00e2n m\u00e1y. Ch\u1ee5p xong, k\u00e9o \u0111o\u1ea1n gi\u1ea5y d\u1eabn ra tr\u01b0\u1edbc \u0111\u00e3, l\u00e0m cho m\u1eb7t ch\u00ednh c\u1ee7a phim \u00e2m, d\u01b0\u01a1ng gh\u00e9p ch\u1ed3ng v\u00e0o, r\u1ed3i k\u00e9o phim t\u1eeb trong khe h\u1edf c\u1ee7a c\u1eb7p c\u1eb7p tr\u1ee5c l\u0103n ra. Qua v\u00e0i gi\u00e2y sau, gi\u1edf phim d\u01b0\u01a1ng t\u1eeb tr\u00ean phim \u00e2m xu\u1ed1ng, qu\u00e9t th\u00eam m\u1ed9t l\u1edbp d\u1ecbch th\u1ec3 l\u00e0m s\u00e1ng b\u00f3ng l\u00e0 \u0111\u00e3 c\u00f3 \u0111\u01b0\u1ee3c m\u1ed9t t\u1ea5m \u1ea3nh ph\u1eb3ng phiu b\u00f3ng nho\u00e1ng r\u1ed3i.<\/p>\n\n\n\n

Ch\u1ee5p \u1ea3nh m\u1ed9t l\u1ea7n th\u00e0nh \u1ea3nh \u0111\u1ee3i l\u1ea5y \u0111\u01b0\u1ee3c ngay, c\u00f3 nh\u1eefng \u01b0u \u0111i\u1ec3m ch\u1ee5p nhanh, ti\u1ebft ki\u1ec7m mu\u1ed1i b\u1ea1c, v.v. v\u1ec1 c\u00e1c m\u1eb7t qu\u1ed1c ph\u00f2ng, nghi\u00ean c\u1ee9u khoa h\u1ecdc, y t\u1ebf tr\u1ecb li\u1ec7u v\u00e0 \u0111\u01b0a tin b\u00e1o ch\u00ed, v.v. n\u00f3 \u0111\u1ec1u c\u00f3 \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i.<\/p>\n\n\n\n

T\u1eeb kho\u00e1: Ch\u1ee5p \u1ea3nh; C\u1ea3m quang; Hi\u1ec7n h\u00ecnh \u1ea2nh \u00e2m; Phim \u00e2m; \u1ea3nh<\/p>\n\n\n\n

<\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"

Nguy\u00ean l\u00ed c\u00f4ng t\u00e1c c\u1ee7a vi\u1ec7c ch\u1ee5p \u1ea3nh kh\u00f4ng c\u00f2n l\u00e0 \u0111i\u1ec1u b\u00ed m\u1eadt n\u1eefa. Tr\u00ean phim ch\u1ee5p \u1ea3nh c\u00f3 ph\u1ebft m\u1ed9t l\u1edbp nguy\u00ean li\u1ec7u c\u1ea3m quang – nh\u0169 t\u01b0\u01a1ng b\u1ea1c halogenua. Sau khi c\u1ea3m quang, n\u00f3 s\u1ebd l\u01b0u l\u1ea1i h\u00ecnh \u1ea3nh \u1ea9n. B\u1ea1c halogenua b\u1ecb c\u1ea3m quang, d\u01b0\u1edbi t\u00e1c \u0111\u1ed9ng c\u1ee7a n\u01b0\u1edbc thu\u1ed1c hi\u1ec7n […]<\/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":[15,7],"tags":[],"class_list":["post-5962","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc","category-vat-ly"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/5962","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=5962"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/5962\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=5962"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=5962"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=5962"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}