M\u1ea5y ch\u1ee5c n\u0103m tr\u01b0\u1edbc ng\u01b0\u1eddi ta ch\u1ec9 ch\u1ee5p \u0111\u01b0\u1ee3c phim \u1ea3nh \u0111en tr\u1eafng. B\u1ea5y gi\u1edd ng\u01b0\u1eddi ta ch\u1ec9 d\u00f9ng c\u00e1ch t\u00f4 m\u00e0u \u0111\u1ec3 bi\u1ebfn phim \u1ea3nh \u0111en tr\u1eafng th\u00e0nh phim \u1ea3nh m\u00e0u. Ban \u0111\u1ea7u ng\u01b0\u1eddi ta ngh\u0129 c\u00e1ch d\u00f9ng bi\u1ec7n ph\u00e1p t\u00f4 m\u00e0u b\u1eb1ng tay t\u00f4 d\u1ea7n t\u1eebng h\u00ecnh \u1ea3nh tr\u00ean cu\u1ed9n phim \u0111\u1ec3 bi\u1ebfn phim \u1ea3nh \u0111en tr\u1eafng th\u00e0nh phim \u1ea3nh m\u00e0u. Th\u1ebf nh\u01b0ng khi chi\u1ebfu phim, ng\u01b0\u1eddi ta ph\u1ea3i chi\u1ebfu v\u1edbi t\u1ed1c \u0111\u1ed9 24 h\u00ecnh\/gi\u00e2y, v\u00ec v\u1eady n\u1ebfu d\u00f9ng c\u00e1ch t\u00f4 m\u00e0u th\u00ec ph\u1ea3i d\u00f9ng \u0111\u1ebfn nhi\u1ec1u th\u00e1ng, nhi\u1ec1u n\u0103m m\u1edbi t\u00f4 m\u00e0u xong m\u1ed9t b\u1ed9 phim. L\u00e0m nh\u01b0 v\u1eady, sau khi t\u00f4 m\u00e0u xong b\u1ed9 phim, th\u00ec m\u00e0u s\u1ebd kh\u00f4ng c\u00f2n t\u01b0\u01a1i m\u1edbi n\u1eefa, gi\u1eefa h\u00ecnh \u1ea3nh c\u1ee7a c\u00e1c khu\u00f4ng h\u00ecnh m\u00e0u s\u1ebd kh\u00f4ng \u0111\u1ec1u.<\/p>\n\n\n\n
Ng\u00e0y nay th\u00ec m\u00e0u, h\u00ecnh \u1ea3nh c\u1ee7a c\u00e1c b\u1ed9 phim m\u00e0u r\u1ea5t \u0111\u1ec1u, \u0111\u1eb9p, m\u00e0u t\u01b0\u01a1i nh\u01b0 th\u1eadt? V\u00ec sao v\u1eady?<\/p>\n\n\n\n
M\u1ecdi ng\u01b0\u1eddi \u0111\u1ec1u bi\u1ebft ba lo\u1ea1i b\u1ed9t m\u00e0u \u0111\u1ecf, v\u00e0ng, lam tr\u1ed9n v\u1edbi nhau c\u00f3 th\u1ec3 ph\u1ed1i ch\u1ebf th\u00e0nh m\u00e0u b\u1ea5t k\u1ef3. \u0110\u1ecf, v\u00e0ng, lam l\u00e0 ba m\u00e0u g\u1ed1c c\u1ee7a “h\u1ed9i ho\u1ea1 ba m\u00e0u”. T\u01b0\u01a1ng t\u1ef1 n\u1ebfu d\u00f9ng ba lo\u1ea1i \u00e1nh s\u00e1ng m\u00e0u: \u0111\u1ecf, l\u1ee5c, lam (kh\u00f4ng ph\u1ea3i l\u00e0 \u0111\u1ecf, v\u00e0ng, lam) ph\u1ed1i tr\u1ed9n v\u1edbi nhau s\u1ebd cho \u00e1nh s\u00e1ng c\u00f3 m\u00e0u b\u1ea5t k\u1ef3. Ba m\u00e0u \u0111\u1ecf, l\u1ee5c, lam \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 ba m\u00e0u g\u1ed1c c\u1ee7a “\u00e1nh s\u00e1ng ba m\u00e0u”.<\/p>\n\n\n\n
Tr\u00ean phim \u1ea3nh \u0111en tr\u1eafng ng\u01b0\u1eddi ta d\u00f9ng b\u1ea1c halogenua l\u00e0m ch\u1ea5t c\u1ea3m quang. Ng\u01b0\u1eddi ta t\u00ecm th\u1ea5y n\u1ebfu d\u00f9ng \u0111\u01a1n thu\u1ea7n b\u1ea1c halogenua l\u00e0m ch\u1ea5t c\u1ea3m quang th\u00ec ch\u1ec9 nh\u1ea1y v\u1edbi m\u00e0u lam. N\u1ebfu th\u00eam v\u00e0o b\u1ea1c halogenua m\u1ed9t lo\u1ea1i “thu\u1ed1c nhu\u1ed9m \u0111\u1eb7c bi\u1ec7t” c\u00f3 th\u1ec3 l\u00e0m b\u1ea1c halogenua nh\u1ea1y c\u1ea3m v\u1edbi m\u00e0u \u0111\u1ecf ho\u1eb7c m\u00e0u l\u1ee5c. Lo\u1ea1i thu\u1ed1c nhu\u1ed9m c\u00f3 t\u00ednh \u0111\u1eb7c th\u00f9 n\u00e0y l\u00e0 c\u00e1c ch\u1ea5t “t\u0103ng c\u1ea3m quang”. T\u1eeb \u0111\u00f3 ng\u01b0\u1eddi ta m\u1edbi ngh\u0129 \u0111\u1ebfn vi\u1ec7c ch\u1ebf t\u1ea1o lo\u1ea1i “phim nhi\u1ec1u l\u1edbp”. Tr\u01b0\u1edbc h\u1ebft ng\u01b0\u1eddi ta tr\u1ea3i l\u00ean \u0111\u1ebf l\u1edbp nh\u0169 t\u01b0\u01a1ng c\u00f3 ch\u1ea5t t\u0103ng nh\u1ea1y c\u1ea3m cho m\u00e0u \u0111\u1ecf, \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 l\u1edbp “nh\u0169 t\u01b0\u01a1ng nh\u1ea1y c\u1ea3m m\u00e0u \u0111\u1ecf”. L\u1ea1i tr\u1ea3i ti\u1ebfp lo\u1ea1i nh\u0169 t\u01b0\u01a1ng c\u00f3 th\u00eam ch\u1ea5t t\u0103ng c\u1ea3m quang cho \u00e1nh s\u00e1ng m\u00e0u l\u1ee5c, g\u1ecdi l\u00e0 l\u1edbp “nh\u0169 t\u01b0\u01a1ng nh\u1ea1y c\u1ea3m m\u00e0u l\u1ee5c”. Tr\u00ean c\u00f9ng ng\u01b0\u1eddi ta tr\u1ea3i l\u1edbp nh\u0169 t\u01b0\u01a1ng kh\u00f4ng th\u00eam ch\u1ea5t t\u0103ng c\u1ea3m quang ng\u01b0\u1eddi ta g\u1ecdi \u0111\u00f3 l\u00e0 l\u1edbp nh\u0169 t\u01b0\u01a1ng “nh\u1ea1y v\u1edbi m\u00e0u lam”.<\/p>\n\n\n\n
Khi ng\u01b0\u1eddi ta ch\u1ee5p \u1ea3nh, quay phim, nh\u1edd \u1ed1ng k\u00ednh m\u00e1y ch\u1ee5p \u1ea3nh, m\u00e1y quay phim, \u00e1nh s\u00e1ng m\u00e0u s\u1ebd r\u01a1i l\u00ean phim tr\u00e1ng nhi\u1ec1u l\u1edbp.<\/p>\n\n\n\n
Sau khi \u00e1nh s\u00e1ng ph\u00e2n gi\u1ea3i, tu\u1ef3 thu\u1ed9c th\u00e0nh ph\u1ea7n \u00e1nh s\u00e1ng \u0111\u1ecf, l\u1ee5c, lam trong ch\u00f9m \u00e1nh s\u00e1ng nhi\u1ec1u hay \u00edt m\u00e0 t\u00e1c d\u1ee5ng kh\u00e1c nhau tr\u00ean c\u00e1c l\u1edbp nh\u0169 t\u01b0\u01a1ng c\u00f3 nh\u1ea1y c\u1ea3m kh\u00e1c nhau v\u1edbi \u00e1nh s\u00e1ng. Sau khi tr\u00e1ng phim, s\u1ebd hi\u1ec7n ra m\u00e0u s\u1eafc tr\u00ean phim. Ch\u1ec9 c\u00f3 \u0111i\u1ec1u l\u1ea1 l\u00e0 n\u1ebfu y ph\u1ee5c c\u00f3 m\u00e0u \u0111\u1ecf, h\u00ecnh \u1ea3nh ch\u1ee5p s\u1ebd c\u00f3 y ph\u1ee5c m\u00e0u xanh, m\u00e0u lam bi\u1ebfn th\u00e0nh c\u00f3 m\u00e0u xanh da tr\u1eddi, m\u00e0u xanh l\u1ea1i bi\u1ebfn th\u00e0nh m\u00e0u \u0111\u1ecf.<\/p>\n\n\n\n
\u0110\u00e2y ch\u00ednh l\u00e0 phim \u00e2m b\u1ea3n. N\u1ebfu \u0111em phim \u00e2m b\u1ea3n in l\u1ea1i tr\u00ean phim m\u00e0u kh\u00e1c, b\u1ea5y gi\u1edd m\u1edbi tr\u1ea3 l\u1ea1i tr\u00ean phim h\u00ecnh \u1ea3nh c\u00f3 m\u00e0u v\u1ed1n c\u00f3 c\u1ee7a v\u1eadt th\u1ef1c. B\u1ea5y gi\u1edd qu\u1ea7n \u00e1o m\u00e0u \u0111\u1ecf m\u1edbi \u0111\u01b0\u1ee3c “kh\u00f4i ph\u1ee5c” l\u1ea1i m\u00e0u \u0111\u1ecf t\u01b0\u01a1i v\u1ed1n c\u00f3 c\u1ee7a n\u00f3, m\u00e0u xanh da tr\u1eddi \u0111\u01b0\u1ee3c tr\u1ea3 l\u1ea1i m\u00e0u lam, m\u00e0u \u0111\u1ecf \u0111\u01b0\u1ee3c tr\u1ea3 l\u1ea1i m\u00e0u l\u1ee5c. Nh\u01b0 v\u1eady trong \u0111i\u1ec7n \u1ea3nh m\u00e0u, c\u00e1ch quay phim l\u00e0: tr\u01b0\u1edbc h\u1ebft ng\u01b0\u1eddi ta ghi h\u00ecnh \u1ea3nh tr\u00ean phim l\u00e0 phim \u00e2m b\u1ea3n, sau \u0111\u00f3 l\u1ea1i in l\u1ea1i tr\u00ean cu\u1ed9n phim kh\u00e1c th\u00e0nh phim d\u01b0\u01a1ng b\u1ea3n. Khi chi\u1ebfu h\u00ecnh \u1ea3nh l\u00ean m\u00e0n b\u1ea1c ch\u00ednh l\u00e0 phim d\u01b0\u01a1ng b\u1ea3n.<\/p>\n\n\n\n
Nh\u1edd s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a khoa h\u1ecdc k\u1ef9 thu\u1eadt, ng\u00e0y nay c\u00f3 nhi\u1ec1u lo\u1ea1i ch\u1ea5t t\u0103ng c\u1ea3m. Ngo\u00e0i c\u00e1c lo\u1ea1i phim m\u00e0u \u00e2m b\u1ea3n v\u00e0 d\u01b0\u01a1ng b\u1ea3n th\u01b0\u1eddng, c\u00f2n c\u00f3 v\u1eadt li\u1ec7u c\u1ea3m quang chuy\u1ec3n \u0111\u1ed5i m\u00e0u h\u00ecnh \u1ea3nh, v\u1eadt li\u1ec7u c\u1ea3m quang h\u1ed3ng ngo\u1ea1i h\u00e0ng kh\u00f4ng\u2026 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong nhi\u1ebfp \u1ea3nh, \u0111i\u1ec7n \u1ea3nh, v\u0103n ho\u00e1, gi\u00e1o d\u1ee5c, trong ch\u1ea9n \u0111o\u00e1n y khoa, trong ch\u1ee5p \u1ea3nh h\u00e0ng kh\u00f4ng cho \u0111\u1ebfn trong trinh s\u00e1t qu\u00e2n s\u1ef1\u2026<\/p>\n\n\n\n
T\u1eeb kho\u00e1: Phim m\u00e0u; V\u1eadt li\u1ec7u c\u1ea3m quang.<\/p>\n\n\n\n
<\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"
M\u1ea5y ch\u1ee5c n\u0103m tr\u01b0\u1edbc ng\u01b0\u1eddi ta ch\u1ec9 ch\u1ee5p \u0111\u01b0\u1ee3c phim \u1ea3nh \u0111en tr\u1eafng. B\u1ea5y gi\u1edd ng\u01b0\u1eddi ta ch\u1ec9 d\u00f9ng c\u00e1ch t\u00f4 m\u00e0u \u0111\u1ec3 bi\u1ebfn phim \u1ea3nh \u0111en tr\u1eafng th\u00e0nh phim \u1ea3nh m\u00e0u. Ban \u0111\u1ea7u ng\u01b0\u1eddi ta ngh\u0129 c\u00e1ch d\u00f9ng bi\u1ec7n ph\u00e1p t\u00f4 m\u00e0u b\u1eb1ng tay t\u00f4 d\u1ea7n t\u1eebng h\u00ecnh \u1ea3nh tr\u00ean cu\u1ed9n phim \u0111\u1ec3 bi\u1ebfn […]<\/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":[8,15],"tags":[],"class_list":["post-7994","post","type-post","status-publish","format-standard","hentry","category-hoa-hoc","category-hoi-dap-khoa-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/7994","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=7994"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/7994\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=7994"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=7994"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=7994"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}