{"id":59798,"date":"2019-08-06T09:42:21","date_gmt":"2019-08-06T02:42:21","guid":{"rendered":"https:\/\/tmp.phongvu.vn\/?p=59798"},"modified":"2019-08-06T09:42:21","modified_gmt":"2019-08-06T02:42:21","slug":"do-nhay-sang-may-anh-iso-la-gi","status":"publish","type":"post","link":"https:\/\/tmp.phongvu.vn\/hoi-dap\/do-nhay-sang-may-anh-iso-la-gi\/","title":{"rendered":"\u0110\u1ed9 nh\u1ea1y s\u00e1ng m\u00e1y \u1ea3nh &#8211; ISO l\u00e0 g\u00ec?"},"content":{"rendered":"<h2><strong>\u0110\u1ed9 nh\u1ea1y s\u00e1ng m\u00e1y \u1ea3nh &#8211; ISO l\u00e0 g\u00ec?<\/strong><\/h2>\n<p>&nbsp;<\/p>\n<p>\u0110\u1ed9 nh\u1ea1y s\u00e1ng ISO ki\u1ec3m so\u00e1t m\u1ee9c nh\u1ea1y c\u1ee7a c\u1ea3m bi\u1ebfn m\u00e1y \u1ea3nh \u0111\u1ed1i v\u1edbi \u00e1nh s\u00e1ng \u0111i v\u00e0o c\u1ea3m bi\u1ebfn. M\u1ed9t thi\u1ebft l\u1eadp ISO c\u00e0ng cao s\u1ebd l\u00e0m cho c\u1ea3m bi\u1ebfn m\u00e1y \u1ea3nh c\u00e0ng nh\u1ea1y s\u00e1ng, cho ph\u00e9p b\u1ea1n ch\u1ee5p \u1ea3nh \u1edf m\u1ed9t n\u01a1i t\u1ed1i s\u00e1ng. N\u00f3 c\u0169ng c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u1ed1c \u0111\u1ed9 c\u1eeda tr\u1eadp v\u00e0 thi\u1ebft l\u1eadp kh\u1ea9u \u0111\u1ed9. C\u00f9ng t\u00ecm hi\u1ec3u th\u00eam \u1edf ph\u1ea7n tr\u00ecnh b\u00e0y b\u00ean d\u01b0\u1edbi nh\u00e9.<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-59799 size-full\" src=\"https:\/\/tmp.phongvu.vn\/wp-content\/uploads\/2019\/08\/do-nhay-sang-iso.jpg\" alt=\"\" width=\"828\" height=\"582\" srcset=\"https:\/\/tmp.phongvu.vn\/wp-content\/uploads\/2019\/08\/do-nhay-sang-iso.jpg 828w, https:\/\/tmp.phongvu.vn\/wp-content\/uploads\/2019\/08\/do-nhay-sang-iso-300x211.jpg 300w, https:\/\/tmp.phongvu.vn\/wp-content\/uploads\/2019\/08\/do-nhay-sang-iso-768x540.jpg 768w\" sizes=\"(max-width: 828px) 100vw, 828px\" \/><\/p>\n<h3><strong>Kh\u00e1i ni\u1ec7m<\/strong><\/h3>\n<p>&#8220;ISO&#8221; hay &#8220;\u0111\u1ed9 nh\u1ea1y s\u00e1ng ISO&#8221; l\u00e0 vi\u1ebft t\u1eaft c\u1ee7a International Organisation for Standardisation (T\u1ed5 Ch\u1ee9c Chu\u1ea9n H\u00f3a Qu\u1ed1c T\u1ebf) &#8211; m\u1ed9t t\u1ed5 ch\u1ee9c x\u00e1c \u0111\u1ecbnh c\u00e1c ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf.<\/p>\n<p>\u0110\u1ed9 nh\u1ea1y s\u00e1ng ISO l\u00e0 m\u1ed9t thu\u1eadt ng\u1eef nhi\u1ebfp \u1ea3nh \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i. Tr\u00ean m\u00e1y \u1ea3nh phim, n\u00f3 cho bi\u1ebft \u0111\u1ed9 nh\u1ea1y c\u1ee7a phim \u1ea3nh v\u1edbi \u00e1nh s\u00e1ng. Tr\u00ean m\u00e1y \u1ea3nh s\u1ed1, n\u00f3 cho bi\u1ebft \u0111\u1ed9 nh\u1ea1y c\u1ee7a c\u1ea3m bi\u1ebfn CMOS v\u1edbi \u00e1nh s\u00e1ng.<\/p>\n<p>\u0110\u1ed9 nh\u1ea1y s\u00e1ng ISO c\u00e0ng cao cho bi\u1ebft \u0111\u1ed9 nh\u1ea1y s\u00e1ng c\u00e0ng cao. \u0110i\u1ec1u n\u00e0y s\u1ebd c\u00f3 \u00edch khi b\u1ea1n ch\u1ee5p \u1ea3nh \u1edf \u0111i\u1ec1u ki\u1ec7n thi\u1ebfu s\u00e1ng, v\u00ec n\u00f3 cho ph\u00e9p b\u1ea1n ghi l\u1ea1i m\u00f4i tr\u01b0\u1eddng xung quanh m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng m\u00e0 kh\u00f4ng c\u1ea7n ph\u1ea3i d\u00f9ng \u0111\u00e8n flash. \u0110i\u1ec1u n\u00e0y l\u00ed t\u01b0\u1edfng v\u1edbi c\u00e1c t\u00ecnh hu\u1ed1ng nh\u01b0 khi b\u1ea1n ch\u1ee5p \u1ea3nh trong nh\u00e0 \u1edf n\u01a1i kh\u00f4ng \u0111\u01b0\u1ee3c ph\u00e9p d\u00f9ng \u0111\u00e8n flash.<\/p>\n<p>N\u1ebfu b\u1ea1n s\u1eed d\u1ee5ng m\u1ed9t \u0111\u1ed9 nh\u1ea1y s\u00e1ng ISO th\u1ea5p, b\u1ea1n s\u1ebd ph\u1ea3i s\u1eed d\u1ee5ng \u0111\u00e8n flash \u0111\u1ec3 c\u00f3 c\u00f9ng k\u1ebft qu\u1ea3.<\/p>\n<p>Ch\u00fang ta c\u00f3 th\u1ec3 ki\u1ec3m so\u00e1t \u0111\u1ed9 s\u00e2u tr\u01b0\u1eddng \u1ea3nh b\u1eb1ng kh\u1ea9u \u0111\u1ed9, v\u00e0 chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a \u0111\u1ed1i t\u01b0\u1ee3ng b\u1eb1ng t\u1ed1c \u0111\u1ed9 c\u1eeda tr\u1eadp. Nh\u1eefng gi\u00e1 tr\u1ecb n\u00e0y k\u1ebft h\u1ee3p v\u1edbi \u0111\u1ed9 nh\u1ea1y s\u00e1ng ISO \u0111\u1ec3 quy\u1ebft \u0111\u1ecbnh m\u1ee9c ph\u01a1i s\u00e1ng (l\u01b0\u1ee3ng \u00e1nh s\u00e1ng) c\u1ee7a \u1ea3nh. Hi\u1ec3n th\u1ecb \u0111\u01b0\u1ee3c c\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a ch\u00fang s\u1ebd gi\u00fap b\u1ea1n c\u00f3 \u0111\u01b0\u1ee3c nh\u1eefng t\u1ea5m h\u00ecnh \u0111\u1eb9p h\u01a1n.<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-59800 size-full\" src=\"https:\/\/tmp.phongvu.vn\/wp-content\/uploads\/2019\/08\/2.png\" alt=\"\" width=\"570\" height=\"175\" srcset=\"https:\/\/tmp.phongvu.vn\/wp-content\/uploads\/2019\/08\/2.png 570w, https:\/\/tmp.phongvu.vn\/wp-content\/uploads\/2019\/08\/2-300x92.png 300w\" sizes=\"(max-width: 570px) 100vw, 570px\" \/><\/p>\n<h3><strong>V\u00ed d\u1ee5 v\u1ec1 \u1ea3nh c\u00f3 \u0111\u1ed9 nh\u1ea1y sa\u0301ng ISO cao\u00a0<\/strong><\/h3>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-59809 size-full\" src=\"https:\/\/tmp.phongvu.vn\/wp-content\/uploads\/2019\/08\/3.jpg\" alt=\"\" width=\"544\" height=\"816\" srcset=\"https:\/\/tmp.phongvu.vn\/wp-content\/uploads\/2019\/08\/3.jpg 544w, https:\/\/tmp.phongvu.vn\/wp-content\/uploads\/2019\/08\/3-200x300.jpg 200w\" sizes=\"(max-width: 544px) 100vw, 544px\" \/><\/p>\n<h3><strong>f\/5.6<\/strong><\/h3>\n<p><em><strong>Manual exposure (1\/800 gi\u00e2y, f\/4)\/ ISO 6400<\/strong><\/em><br \/>\nTrong v\u00ed d\u1ee5 n\u00e0y, c\u1eed \u0111\u1ed9ng c\u1ee7a ngh\u1ec7 s\u0129 \u0111\u01b0\u1ee3c &#8220;\u0111\u00f3ng b\u0103ng&#8221; b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng t\u1ed1c \u0111\u1ed9 c\u1eeda tr\u1eadp cao. T\u00f4i kh\u00f4ng nh\u00e1y \u0111\u00e8n flash \u0111\u1ec3 tr\u00e1nh l\u00e0m \u1ea3nh h\u01b0\u1edfng kh\u00f4ng kh\u00ed c\u1ee7a \u1ea3nh c\u00f3 \u0111\u01b0\u1ee3c. \u0110\u00e2y l\u00e0 m\u1ed9t c\u1ea3nh thi\u1ebfu s\u00e1ng \u0111i\u1ec3n h\u00ecnh c\u00f3 th\u1ec3 ch\u1ee5p b\u1eb1ng \u0111\u1ed9 nh\u1ea1y sa\u0301ng ISO cao.<\/p>\n<h3><strong>V\u00ed d\u1ee5 v\u1ec1 \u1ea3nh c\u00f3 \u0111\u1ed9 nh\u1ea1y s\u00e1ng ISO th\u1ea5p<\/strong><\/h3>\n<p><strong><em>Aperture-priority AE (25 gi\u00e2y, f\/25)\/ ISO 100<\/em><\/strong><br \/>\nTrong v\u00ed d\u1ee5 n\u00e0y, t\u00f4i ch\u1ecdn m\u1ed9t \u0111\u1ed9 nh\u1ea1y ISO th\u1ea5p. \u0110i\u1ec1u n\u00e0y, c\u00f9ng v\u1edbi vi\u1ec7c s\u1eed d\u1ee5ng m\u1ed9t kh\u1ea9u \u0111\u1ed9 h\u1eb9p h\u01a1n, cho ph\u00e9p t\u00f4i c\u00f3 \u0111\u01b0\u1ee3c t\u1ed1c \u0111\u1ed9 c\u1eeda tr\u1eadp th\u1ea5p h\u01a1n. T\u1ed1c \u0111\u1ed9 c\u1eeda tr\u1eadp th\u1ea5p s\u1ebd l\u00e0m nh\u00f2e \u00e1nh s\u00e1ng c\u1ee7a \u0111\u00e8n pha v\u00e0 \u0111\u00e8n \u0111u\u00f4i c\u1ee7a xe, t\u1ea1o th\u00e0nh c\u00e1c v\u1ec7t s\u00e1ng.<\/p>\n<h3><strong>T\u0103ng \u0111\u1ed9 nh\u1ea1y s\u00e1ng ISO \u0111\u1ec3 s\u1eed d\u1ee5ng t\u1ed1c \u0111\u1ed9 c\u1eeda tr\u1eadp cao h\u01a1n<\/strong><\/h3>\n<p>\u1ede \u0111i\u1ec1u ki\u1ec7n thi\u1ebfu s\u00e1ng, vi\u1ec7c t\u0103ng \u0111\u1ed9 nh\u1ea1y s\u00e1ng ISO cho ph\u00e9p nhi\u1ec1u \u00e1nh s\u00e1ng h\u01a1n ch\u1ea1m \u0111\u1ebfn c\u1ea3m bi\u1ebfn m\u00e1y \u1ea3nh, cho ph\u00e9p b\u1ea1n t\u1ea1o ra \u1ea3nh r\u00f5 h\u01a1n.<\/p>\n<p>\u1edf c\u00e1c \u0111i\u1ec1u ki\u1ec7n s\u00e1ng, \u0111\u1ed9 nh\u1ea1y s\u00e1ng ISO cao h\u01a1n s\u1ebd cho ph\u00e9p c\u1ea3m bi\u1ebfn h\u00ecnh \u1ea3nh ghi l\u1ea1i l\u01b0\u1ee3ng \u00e1nh s\u00e1ng l\u1edbn trong m\u1ed9t th\u1eddi gian ng\u1eafn. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p b\u1ea1n s\u1eed d\u1ee5ng m\u1ed9t t\u1ed1c \u0111\u1ed9 c\u1eeda tr\u1eadp cao h\u01a1n so v\u1edbi \u1edf thi\u1ebft l\u1eadp \u0111\u1ed9 nh\u1ea1y s\u00e1ng ISO th\u1ea5p. Trong ch\u1ee5p \u1ea3nh th\u1ec3 thao, ng\u01b0\u1eddi ta s\u1eed d\u1ee5ng \u0111\u1ed9 nh\u1ea1y s\u00e1ng ISO cao \u0111\u1ebfn 400 khi ch\u1ee5p v\u00e0o ban ng\u00e0y.<\/p>\n<p>ISO 200, 1\/50 gi\u00e2y<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-medium wp-image-59814\" src=\"https:\/\/tmp.phongvu.vn\/wp-content\/uploads\/2019\/08\/4-200x300.jpg\" alt=\"\" width=\"200\" height=\"300\" srcset=\"https:\/\/tmp.phongvu.vn\/wp-content\/uploads\/2019\/08\/4-200x300.jpg 200w, https:\/\/tmp.phongvu.vn\/wp-content\/uploads\/2019\/08\/4.jpg 402w\" sizes=\"(max-width: 200px) 100vw, 200px\" \/> <img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-medium wp-image-59815\" src=\"https:\/\/tmp.phongvu.vn\/wp-content\/uploads\/2019\/08\/5-200x300.jpg\" alt=\"\" width=\"200\" height=\"300\" srcset=\"https:\/\/tmp.phongvu.vn\/wp-content\/uploads\/2019\/08\/5-200x300.jpg 200w, https:\/\/tmp.phongvu.vn\/wp-content\/uploads\/2019\/08\/5.jpg 402w\" sizes=\"(max-width: 200px) 100vw, 200px\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u0110\u1ed9 nh\u1ea1y s\u00e1ng m\u00e1y \u1ea3nh &#8211; ISO l\u00e0 g\u00ec? &nbsp; \u0110\u1ed9 nh\u1ea1y s\u00e1ng ISO ki\u1ec3m so\u00e1t m\u1ee9c nh\u1ea1y c\u1ee7a c\u1ea3m bi\u1ebfn m\u00e1y \u1ea3nh \u0111\u1ed1i v\u1edbi \u00e1nh&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/tmp.phongvu.vn\/hoi-dap\/wp-json\/wp\/v2\/posts\/59798"}],"collection":[{"href":"https:\/\/tmp.phongvu.vn\/hoi-dap\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tmp.phongvu.vn\/hoi-dap\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tmp.phongvu.vn\/hoi-dap\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/tmp.phongvu.vn\/hoi-dap\/wp-json\/wp\/v2\/comments?post=59798"}],"version-history":[{"count":1,"href":"https:\/\/tmp.phongvu.vn\/hoi-dap\/wp-json\/wp\/v2\/posts\/59798\/revisions"}],"predecessor-version":[{"id":59920,"href":"https:\/\/tmp.phongvu.vn\/hoi-dap\/wp-json\/wp\/v2\/posts\/59798\/revisions\/59920"}],"wp:attachment":[{"href":"https:\/\/tmp.phongvu.vn\/hoi-dap\/wp-json\/wp\/v2\/media?parent=59798"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tmp.phongvu.vn\/hoi-dap\/wp-json\/wp\/v2\/categories?post=59798"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tmp.phongvu.vn\/hoi-dap\/wp-json\/wp\/v2\/tags?post=59798"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}