{"id":585033,"date":"2026-08-17T16:18:51","date_gmt":"2026-08-17T09:18:51","guid":{"rendered":"https:\/\/hoanghamobile.com\/tin-tuc\/?p=585033"},"modified":"2026-08-17T16:18:51","modified_gmt":"2026-08-17T09:18:51","slug":"do-sau-truong-anh-la-gi","status":"publish","type":"post","link":"https:\/\/hoanghamobile.com\/tin-tuc\/do-sau-truong-anh-la-gi\/","title":{"rendered":"\u0110\u1ed9 s\u00e2u tr\u01b0\u1eddng \u1ea3nh l\u00e0 g\u00ec? C\u00e1ch ki\u1ec3m so\u00e1t v\u00f9ng n\u00e9t khi ch\u1ee5p"},"content":{"rendered":"

\u0110\u1ed9 s\u00e2u tr\u01b0\u1eddng \u1ea3nh l\u00e0 ph\u1ea1m vi kho\u1ea3ng c\u00e1ch trong khung h\u00ecnh m\u00e0 m\u1ecdi v\u1eadt th\u1ec3 n\u1eb1m trong \u0111\u00f3 \u0111\u1ec1u \u0111\u01b0\u1ee3c l\u1ea5y n\u00e9t r\u00f5 – t\u1eeb \u0111i\u1ec3m g\u1ea7n nh\u1ea5t \u0111\u1ebfn \u0111i\u1ec3m xa nh\u1ea5t v\u1eabn c\u00f2n s\u1eafc n\u00e9t so v\u1edbi \u1ed1ng k\u00ednh. \u0110\u00e2y l\u00e0 kh\u00e1i ni\u1ec7m g\u1ed1c r\u1ec5 c\u1ee7a g\u1ea7n nh\u01b0 m\u1ecdi b\u1ee9c \u1ea3nh \u0111\u1eb9p: m\u1ed9t t\u1ea5m ch\u00e2n dung x\u00f3a ph\u00f4ng m\u1ecbn m\u00e0ng hay m\u1ed9t b\u1ee9c phong c\u1ea3nh n\u00e9t c\u0103ng t\u1eeb ti\u1ec1n c\u1ea3nh t\u1edbi h\u1eadu c\u1ea3nh \u0111\u1ec1u l\u00e0 k\u1ebft qu\u1ea3 c\u1ee7a vi\u1ec7c ki\u1ec3m so\u00e1t v\u00f9ng n\u00e9t n\u00e0y. N\u1ebfu b\u1ea1n t\u1eebng th\u1eafc m\u1eafc v\u00ec sao \u1ea3nh ch\u1ee5p b\u1eb1ng \u0111i\u1ec7n tho\u1ea1i \u0111\u00f4i khi m\u1edd nh\u00f2e kh\u00f4ng \u0111\u00fang ch\u1ed7, ho\u1eb7c v\u00ec sao \u1ea3nh nh\u00f3m b\u1ecb “r\u01a1i n\u00e9t” ng\u01b0\u1eddi \u0111\u1ee9ng sau, c\u00e2u tr\u1ea3 l\u1eddi g\u1ea7n nh\u01b0 lu\u00f4n n\u1eb1m \u1edf \u0111\u1ed9 s\u00e2u tr\u01b0\u1eddng \u1ea3nh.<\/p>\n

B\u00e0i vi\u1ebft d\u01b0\u1edbi \u0111\u00e2y gi\u1ea3i th\u00edch \u0111\u1ed9 s\u00e2u tr\u01b0\u1eddng \u1ea3nh l\u00e0 g\u00ec, ph\u00e2n bi\u1ec7t v\u1edbi c\u00e1c kh\u00e1i ni\u1ec7m hay b\u1ecb nh\u1ea7m nh\u01b0 x\u00f3a ph\u00f4ng hay kh\u1ea9u \u0111\u1ed9, v\u00e0 h\u01b0\u1edbng d\u1eabn c\u00e1ch ki\u1ec3m so\u00e1t v\u00f9ng n\u00e9t b\u1eb1ng ba y\u1ebfu t\u1ed1 kh\u1ea9u \u0111\u1ed9 – kho\u1ea3ng c\u00e1ch – ti\u00eau c\u1ef1, c\u1ea3 tr\u00ean m\u00e1y \u1ea3nh l\u1eabn \u0111i\u1ec7n tho\u1ea1i. Ph\u1ea7n cu\u1ed1i t\u1ed5ng h\u1ee3p nh\u1eefng l\u1ed7i ph\u1ed5 bi\u1ebfn nh\u1ea5t khi ki\u1ec3m so\u00e1t v\u00f9ng n\u00e9t v\u00e0 c\u00e1ch kh\u1eafc ph\u1ee5c, k\u00e8m FAQ gi\u1ea3i \u0111\u00e1p nhanh.<\/p>\n

\u0110\u1ed9 s\u00e2u tr\u01b0\u1eddng \u1ea3nh l\u00e0 g\u00ec?<\/h2>\n

\u0110\u1ed9 s\u00e2u tr\u01b0\u1eddng \u1ea3nh (ti\u1ebfng Anh: depth of field, vi\u1ebft t\u1eaft DOF) l\u00e0 ph\u1ea1m vi kho\u1ea3ng c\u00e1ch trong \u1ea3nh m\u00e0 m\u1ecdi v\u1eadt th\u1ec3 n\u1eb1m trong \u0111\u00f3 \u0111\u1ec1u \u0111\u01b0\u1ee3c l\u1ea5y n\u00e9t r\u00f5. Khi b\u1ea1n l\u1ea5y n\u00e9t v\u00e0o m\u1ed9t \u0111i\u1ec3m, kh\u00f4ng ch\u1ec9 \u0111i\u1ec3m \u0111\u00f3 n\u00e9t m\u00e0 c\u00f2n m\u1ed9t v\u00f9ng ph\u00eda tr\u01b0\u1edbc v\u00e0 ph\u00eda sau \u0111i\u1ec3m l\u1ea5y n\u00e9t c\u0169ng n\u00e9t theo – v\u00f9ng n\u00e0y ch\u00ednh l\u00e0 \u0111\u1ed9 s\u00e2u tr\u01b0\u1eddng \u1ea3nh.<\/p>\n

\u0110\u1ed9 s\u00e2u tr\u01b0\u1eddng \u1ea3nh chia th\u00e0nh hai d\u1ea1ng ch\u00ednh. D\u1ea1ng m\u1ecfng (shallow) l\u00e0 khi ch\u1ec9 m\u1ed9t ph\u1ea7n nh\u1ecf c\u1ee7a \u1ea3nh n\u00e9t, c\u00f2n h\u1eadu c\u1ea3nh v\u00e0 ti\u1ec1n c\u1ea3nh m\u1edd – th\u01b0\u1eddng d\u00f9ng l\u00e0m n\u1ed5i b\u1eadt ch\u1ee7 th\u1ec3, ph\u1ed5 bi\u1ebfn trong \u1ea3nh ch\u00e2n dung ho\u1eb7c \u1ea3nh s\u1ea3n ph\u1ea9m. D\u1ea1ng d\u00e0y (deep) l\u00e0 khi g\u1ea7n nh\u01b0 to\u00e0n b\u1ed9 khung h\u00ecnh, t\u1eeb c\u1eadn c\u1ea3nh t\u1edbi xa, \u0111\u1ec1u n\u00e9t – ph\u00f9 h\u1ee3p v\u1edbi \u1ea3nh phong c\u1ea3nh ho\u1eb7c ki\u1ebfn tr\u00fac, n\u01a1i c\u1ea7n r\u00f5 chi ti\u1ebft \u1edf m\u1ecdi kho\u1ea3ng c\u00e1ch.<\/p>\n

Hi\u1ec3u \u0111\u1ed9 s\u00e2u tr\u01b0\u1eddng \u1ea3nh gi\u00fap b\u1ea1n ch\u1ee7 \u0111\u1ed9ng quy\u1ebft \u0111\u1ecbnh ph\u1ea7n n\u00e0o trong khung h\u00ecnh s\u1ebd n\u00e9t, ph\u1ea7n n\u00e0o s\u1ebd m\u1edd, thay v\u00ec \u0111\u1ec3 m\u00e1y t\u1ef1 ch\u1ecdn.<\/p>\n

\"do-sau-truong-anh-la-gi-3\"<\/p>\n

Ph\u00e2n bi\u1ec7t \u0111\u1ed9 s\u00e2u tr\u01b0\u1eddng \u1ea3nh v\u1edbi x\u00f3a ph\u00f4ng v\u00e0 kh\u1ea9u \u0111\u1ed9<\/h2>\n

Ba kh\u00e1i ni\u1ec7m n\u00e0y li\u00ean quan ch\u1eb7t ch\u1ebd nh\u01b0ng kh\u00f4ng \u0111\u1ed3ng nh\u1ea5t, v\u00e0 \u0111\u00e2y l\u00e0 \u0111i\u1ec3m nhi\u1ec1u ng\u01b0\u1eddi m\u1edbi ch\u1ee5p \u1ea3nh hay nh\u1ea7m l\u1eabn nh\u1ea5t.<\/p>\n

Kh\u1ea9u \u0111\u1ed9 l\u00e0 m\u1ed9t th\u00f4ng s\u1ed1 v\u1eadt l\u00fd c\u1ee7a \u1ed1ng k\u00ednh, \u0111o b\u1eb1ng tr\u1ecb s\u1ed1 f (v\u00ed d\u1ee5 f\/1.8, f\/8), quy\u1ebft \u0111\u1ecbnh l\u01b0\u1ee3ng \u00e1nh s\u00e1ng \u0111i v\u00e0o v\u00e0 l\u00e0 m\u1ed9t trong ba y\u1ebfu t\u1ed1 t\u1ea1o n\u00ean \u0111\u1ed9 s\u00e2u tr\u01b0\u1eddng \u1ea3nh. X\u00f3a ph\u00f4ng (bokeh) l\u00e0 hi\u1ec7u \u1ee9ng th\u1ecb gi\u00e1c – h\u1eadu c\u1ea3nh m\u1edd m\u1ecbn ph\u00eda sau ch\u1ee7 th\u1ec3 – v\u00e0 l\u00e0 k\u1ebft qu\u1ea3 khi \u0111\u1ed9 s\u00e2u tr\u01b0\u1eddng \u1ea3nh m\u1ecfng. N\u00f3i c\u00e1ch kh\u00e1c, kh\u1ea9u \u0111\u1ed9 l\u00e0 nguy\u00ean nh\u00e2n, \u0111\u1ed9 s\u00e2u tr\u01b0\u1eddng \u1ea3nh l\u00e0 c\u01a1 ch\u1ebf, c\u00f2n x\u00f3a ph\u00f4ng l\u00e0 hi\u1ec7u \u1ee9ng b\u1ea1n nh\u00ecn th\u1ea5y tr\u00ean \u1ea3nh.<\/p>\n\n\n\n\n\n\n\n
Kh\u00e1i ni\u1ec7m<\/th>\nL\u00e0 g\u00ec<\/th>\nVai tr\u00f2 trong t\u1ea5m \u1ea3nh<\/th>\n<\/tr>\n<\/thead>\n
\u0110\u1ed9 s\u00e2u tr\u01b0\u1eddng \u1ea3nh<\/td>\nPh\u1ea1m vi kho\u1ea3ng c\u00e1ch trong \u1ea3nh \u0111\u01b0\u1ee3c l\u1ea5y n\u00e9t<\/td>\nQuy\u1ebft \u0111\u1ecbnh v\u00f9ng n\u00e0o n\u00e9t, v\u00f9ng n\u00e0o m\u1edd<\/td>\n<\/tr>\n
Kh\u1ea9u \u0111\u1ed9 (f\/stop)<\/td>\n\u0110\u1ed9 m\u1edf c\u1ee7a \u1ed1ng k\u00ednh, \u0111o b\u1eb1ng tr\u1ecb s\u1ed1 f<\/td>\nM\u1ed9t trong ba y\u1ebfu t\u1ed1 t\u1ea1o ra \u0111\u1ed9 s\u00e2u tr\u01b0\u1eddng \u1ea3nh<\/td>\n<\/tr>\n
X\u00f3a ph\u00f4ng \/ bokeh<\/td>\nHi\u1ec7u \u1ee9ng h\u1eadu c\u1ea3nh m\u1edd, m\u1ecbn<\/td>\nK\u1ebft qu\u1ea3 th\u1ecb gi\u00e1c khi \u0111\u1ed9 s\u00e2u tr\u01b0\u1eddng \u1ea3nh m\u1ecfng<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Khi b\u1ea1n n\u00f3i “mu\u1ed1n x\u00f3a ph\u00f4ng”, \u0111i\u1ec1u b\u1ea1n th\u1ef1c s\u1ef1 c\u1ea7n l\u00e0m l\u00e0 \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ec3 \u0111\u1ed9 s\u00e2u tr\u01b0\u1eddng \u1ea3nh m\u1ecfng \u0111i – kh\u1ea9u \u0111\u1ed9 ch\u1ec9 l\u00e0 m\u1ed9t trong ba c\u00f4ng c\u1ee5 \u0111\u1ec3 l\u00e0m \u0111i\u1ec1u \u0111\u00f3. Tham kh\u1ea3o th\u00eam kh\u1ea9u \u0111\u1ed9 l\u00e0 g\u00ec<\/a> \u0111\u1ec3 hi\u1ec3u r\u00f5 c\u01a1 ch\u1ebf \u0111\u00f3ng – m\u1edf c\u1ee7a \u1ed1ng k\u00ednh.<\/p>\n

C\u00e1ch ki\u1ec3m so\u00e1t v\u00f9ng n\u00e9t: ba y\u1ebfu t\u1ed1 quy\u1ebft \u0111\u1ecbnh<\/h2>\n

\u0110\u1ed9 s\u00e2u tr\u01b0\u1eddng \u1ea3nh l\u00e0 k\u1ebft qu\u1ea3 t\u1ed5ng h\u1ee3p c\u1ee7a ba y\u1ebfu t\u1ed1: kh\u1ea9u \u0111\u1ed9, kho\u1ea3ng c\u00e1ch t\u1edbi ch\u1ee7 th\u1ec3 v\u00e0 ti\u00eau c\u1ef1 \u1ed1ng k\u00ednh. N\u1eafm \u0111\u01b0\u1ee3c c\u00e1ch m\u1ed7i y\u1ebfu t\u1ed1 t\u00e1c \u0111\u1ed9ng s\u1ebd gi\u00fap b\u1ea1n ch\u1ee7 \u0111\u1ed9ng “v\u1ebd” v\u00f9ng n\u00e9t theo \u00fd mu\u1ed1n.<\/p>\n\n\n\n\n\n\n\n
Y\u1ebfu t\u1ed1<\/th>\n\u1ea2nh h\u01b0\u1edfng khi t\u0103ng<\/th>\nV\u00ed d\u1ee5 th\u1ef1c t\u1ebf<\/th>\n<\/tr>\n<\/thead>\n
Kh\u1ea9u \u0111\u1ed9<\/td>\nM\u1edf l\u1edbn (f\/1.8) \u2192 v\u00f9ng n\u00e9t m\u1ecfng; kh\u00e9p nh\u1ecf (f\/8) \u2192 v\u00f9ng n\u00e9t d\u00e0y<\/td>\nCh\u00e2n dung \u1edf f\/1.8 ch\u1ec9 m\u1eaft v\u00e0 m\u0169i n\u00e9t, tai \u0111\u00e3 h\u01a1i m\u1edd; phong c\u1ea3nh \u1edf f\/8 n\u00e9t t\u1eeb g\u1ea7n \u0111\u1ebfn xa<\/td>\n<\/tr>\n
Kho\u1ea3ng c\u00e1ch t\u1edbi ch\u1ee7 th\u1ec3<\/td>\n\u0110\u1ee9ng g\u1ea7n \u2192 v\u00f9ng n\u00e9t m\u1ecfng h\u01a1n; \u0111\u1ee9ng xa \u2192 v\u00f9ng n\u00e9t d\u00e0y h\u01a1n<\/td>\nCh\u1ee5p macro c\u00e1ch hoa 10cm \u1edf f\/2.8 ch\u1ec9 v\u00e0i milim\u00e9t n\u00e9t; l\u00f9i ra 2m c\u00f9ng kh\u1ea9u \u0111\u1ed9, v\u00f9ng n\u00e9t r\u1ed9ng h\u01a1n h\u1eb3n<\/td>\n<\/tr>\n
Ti\u00eau c\u1ef1 \u1ed1ng k\u00ednh<\/td>\nTi\u00eau c\u1ef1 d\u00e0i (85mm, 135mm) \u2192 v\u00f9ng n\u00e9t m\u1ecfng; ti\u00eau c\u1ef1 ng\u1eafn (24mm) \u2192 v\u00f9ng n\u00e9t d\u00e0y<\/td>\nCh\u00e2n dung 85mm \u1edf f\/2.8 x\u00f3a ph\u00f4ng r\u00f5; phong c\u1ea3nh 24mm \u1edf c\u00f9ng f\/2.8 v\u1eabn kh\u00e1 n\u00e9t to\u00e0n khung<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Ba y\u1ebfu t\u1ed1 n\u00e0y c\u1ed9ng h\u01b0\u1edfng v\u1edbi nhau. Mu\u1ed1n x\u00f3a ph\u00f4ng m\u1ea1nh nh\u1ea5t, h\u00e3y k\u1ebft h\u1ee3p kh\u1ea9u \u0111\u1ed9 m\u1edf l\u1edbn, \u0111\u1ee9ng g\u1ea7n ch\u1ee7 th\u1ec3 v\u00e0 d\u00f9ng ti\u00eau c\u1ef1 d\u00e0i. Ng\u01b0\u1ee3c l\u1ea1i, mu\u1ed1n \u1ea3nh n\u00e9t t\u1eeb g\u1ea7n \u0111\u1ebfn xa nh\u01b0 ch\u1ee5p ki\u1ebfn tr\u00fac, h\u00e3y kh\u00e9p kh\u1ea9u, l\u00f9i xa v\u00e0 d\u00f9ng g\u00f3c r\u1ed9ng. Tham kh\u1ea3o th\u00eam ti\u00eau c\u1ef1 l\u00e0 g\u00ec<\/a> \u0111\u1ec3 hi\u1ec3u c\u00e1ch ti\u00eau c\u1ef1 \u1ea3nh h\u01b0\u1edfng khung h\u00ecnh, v\u00e0 ISO l\u00e0 g\u00ec n\u1ebfu b\u1ea1n mu\u1ed1n ki\u1ec3m so\u00e1t tr\u1ecdn b\u1ed9 tam gi\u00e1c ph\u01a1i s\u00e1ng.<\/p>\n

\"do-sau-truong-anh-la-gi-1\"<\/p>\n

Ki\u1ec3m so\u00e1t v\u00f9ng n\u00e9t khi ch\u1ee5p b\u1eb1ng \u0111i\u1ec7n tho\u1ea1i<\/h2>\n

\u0110i\u1ec7n tho\u1ea1i c\u00f3 c\u1ea3m bi\u1ebfn nh\u1ecf h\u01a1n m\u00e1y \u1ea3nh n\u00ean kh\u00f3 t\u1ea1o \u0111\u1ed9 s\u00e2u tr\u01b0\u1eddng \u1ea3nh m\u1ecfng t\u1ef1 nhi\u00ean b\u1eb1ng quang h\u1ecdc; thay v\u00e0o \u0111\u00f3, c\u00e1c h\u00e3ng d\u00f9ng ph\u1ea7n m\u1ec1m \u0111\u1ec3 m\u00f4 ph\u1ecfng hi\u1ec7u \u1ee9ng x\u00f3a ph\u00f4ng.<\/p>\n

Tr\u00ean iPhone, ch\u1ebf \u0111\u1ed9 Ch\u00e2n dung (Portrait) d\u00f9ng nhi\u1ec1u camera ho\u1eb7c d\u1eef li\u1ec7u chi\u1ec1u s\u00e2u \u0111\u1ec3 t\u00e1ch ch\u1ee7 th\u1ec3 kh\u1ecfi h\u1eadu c\u1ea3nh r\u1ed3i l\u00e0m m\u1edd h\u1eadu c\u1ea3nh theo thu\u1eadt to\u00e1n. \u0110i\u1ec3m \u0111\u00e1ng ch\u00fa \u00fd l\u00e0 b\u1ea1n c\u00f3 th\u1ec3 ch\u1ec9nh tr\u1ecb s\u1ed1 f m\u00f4 ph\u1ecfng ngay sau khi ch\u1ee5p, trong \u1ee9ng d\u1ee5ng \u1ea2nh, \u0111\u1ec3 l\u00e0m h\u1eadu c\u1ea3nh m\u1edd nhi\u1ec1u hay \u00edt h\u01a1n m\u00e0 kh\u00f4ng c\u1ea7n ch\u1ee5p l\u1ea1i. Tr\u00ean c\u00e1c d\u00f2ng Samsung, Xiaomi, OPPO, ch\u1ebf \u0111\u1ed9 Ch\u00e2n dung ho\u1ea1t \u0111\u1ed9ng t\u01b0\u01a1ng t\u1ef1, \u0111\u1ed3ng th\u1eddi c\u00f2n c\u00f3 ch\u1ebf \u0111\u1ed9 Pro cho ph\u00e9p ch\u1ec9nh kh\u1ea9u \u0111\u1ed9 m\u00f4 ph\u1ecfng, t\u1ed1c \u0111\u1ed9, ISO th\u1ee7 c\u00f4ng \u0111\u1ec3 ki\u1ec3m so\u00e1t v\u00f9ng n\u00e9t g\u1ea7n v\u1edbi m\u00e1y \u1ea3nh r\u1eddi h\u01a1n.<\/p>\n

V\u00ec \u0111\u00e2y l\u00e0 hi\u1ec7u \u1ee9ng d\u1ef1ng b\u1eb1ng ph\u1ea7n m\u1ec1m, ch\u1ea5t l\u01b0\u1ee3ng t\u00e1ch bi\u00ean ph\u1ee5 thu\u1ed9c nhi\u1ec1u v\u00e0o \u00e1nh s\u00e1ng v\u00e0 \u0111\u1ed9 t\u01b0\u01a1ng ph\u1ea3n gi\u1eefa ch\u1ee7 th\u1ec3 v\u1edbi h\u1eadu c\u1ea3nh. Ch\u1ee5p \u1edf n\u01a1i \u0111\u1ee7 s\u00e1ng, gi\u1eef kho\u1ea3ng c\u00e1ch v\u1eeba ph\u1ea3i v\u1edbi ch\u1ee7 th\u1ec3 (th\u01b0\u1eddng 1-2m l\u00e0 l\u00fd t\u01b0\u1edfng cho ch\u1ebf \u0111\u1ed9 Ch\u00e2n dung) s\u1ebd cho k\u1ebft qu\u1ea3 t\u00e1ch ph\u00f4ng ch\u00ednh x\u00e1c h\u01a1n so v\u1edbi ch\u1ee5p qu\u00e1 g\u1ea7n ho\u1eb7c trong \u0111i\u1ec1u ki\u1ec7n thi\u1ebfu s\u00e1ng.<\/p>\n

5 l\u1ed7i th\u01b0\u1eddng g\u1eb7p khi ki\u1ec3m so\u00e1t v\u00f9ng n\u00e9t v\u00e0 c\u00e1ch kh\u1eafc ph\u1ee5c<\/h2>\n

Ph\u1ea7n l\u1edbn \u1ea3nh x\u00f3a ph\u00f4ng ho\u1eb7c \u1ea3nh n\u00e9t-sai-ch\u1ed7 \u0111\u1ebfn t\u1eeb v\u00e0i l\u1ed7i l\u1eb7p \u0111i l\u1eb7p l\u1ea1i. Nh\u1eadn di\u1ec7n \u0111\u00fang nguy\u00ean nh\u00e2n gi\u00fap b\u1ea1n s\u1eeda nhanh h\u01a1n nhi\u1ec1u so v\u1edbi vi\u1ec7c ch\u1ee5p l\u1ea1i ng\u1eabu nhi\u00ean.<\/p>\n

X\u00f3a ph\u00f4ng lem vi\u1ec1n t\u00f3c ho\u1eb7c tai:<\/strong> l\u1ed7i ph\u1ed5 bi\u1ebfn nh\u1ea5t \u1edf ch\u1ebf \u0111\u1ed9 Ch\u00e2n dung tr\u00ean \u0111i\u1ec7n tho\u1ea1i, do thu\u1eadt to\u00e1n t\u00e1ch bi\u00ean nh\u1ea7m gi\u1eefa c\u00e1c s\u1ee3i t\u00f3c m\u1ea3nh v\u1edbi n\u1ec1n ph\u00eda sau. Kh\u1eafc ph\u1ee5c b\u1eb1ng c\u00e1ch ch\u1ee5p \u1edf n\u01a1i h\u1eadu c\u1ea3nh c\u00f3 m\u00e0u t\u01b0\u01a1ng ph\u1ea3n r\u00f5 v\u1edbi t\u00f3c, tr\u00e1nh h\u1eadu c\u1ea3nh c\u00f9ng t\u00f4ng, v\u00e0 h\u1ea1n ch\u1ebf t\u00f3c bay qu\u00e1 nhi\u1ec1u khi b\u1ea5m ch\u1ee5p.<\/p>\n

Ch\u1ee7 th\u1ec3 m\u1ea5t n\u00e9t \u1edf m\u1eaft d\u00f9 m\u1eb7t v\u1eabn r\u00f5:<\/strong> \u1edf kh\u1ea9u \u0111\u1ed9 m\u1edf l\u1edbn, v\u00f9ng n\u00e9t m\u1ecfng \u0111\u1ebfn m\u1ee9c l\u1ec7ch n\u00e9t v\u00e0i x\u0103ng-ti-m\u00e9t c\u0169ng \u0111\u1ee7 khi\u1ebfn m\u1eaft m\u1edd trong khi m\u00e1 ho\u1eb7c m\u0169i v\u1eabn n\u00e9t. Kh\u1eafc ph\u1ee5c b\u1eb1ng c\u00e1ch ch\u1ea1m l\u1ea5y n\u00e9t tr\u1ef1c ti\u1ebfp v\u00e0o m\u1eaft tr\u00ean m\u00e0n h\u00ecnh tr\u01b0\u1edbc khi ch\u1ee5p, thay v\u00ec \u0111\u1ec3 m\u00e1y t\u1ef1 l\u1ea5y n\u00e9t v\u00e0o gi\u1eefa khung h\u00ecnh.<\/p>\n

\u1ea2nh ch\u1ee5p nh\u00f3m b\u1ecb m\u1edd ng\u01b0\u1eddi \u0111\u1ee9ng sau:<\/strong> khi v\u00f9ng n\u00e9t qu\u00e1 m\u1ecfng, ch\u1ec9 h\u00e0ng ng\u01b0\u1eddi \u0111\u1ee9ng g\u1ea7n m\u00e1y nh\u1ea5t l\u00e0 n\u00e9t, ng\u01b0\u1eddi ph\u00eda sau \u0111\u00e3 r\u01a1i ra ngo\u00e0i v\u00f9ng n\u00e9t. C\u00e1ch x\u1eed l\u00fd l\u00e0 kh\u00e9p kh\u1ea9u \u0111\u1ed9 nh\u1ecf h\u01a1n (ho\u1eb7c gi\u1ea3m m\u1ee9c l\u00e0m m\u1edd n\u1ebfu ch\u1ee5p Ch\u00e2n dung \u0111i\u1ec7n tho\u1ea1i), s\u1eafp ng\u01b0\u1eddi theo h\u00e0ng ngang thay v\u00ec so le tr\u01b0\u1edbc sau, v\u00e0 l\u00f9i m\u00e1y ra xa h\u01a1n m\u1ed9t ch\u00fat.<\/p>\n

\u1ea2nh macro qu\u00e1 m\u1ecfng n\u00e9t, ch\u1ec9 m\u1ed9t \u0111i\u1ec3m r\u00f5:<\/strong> ch\u1ee5p c\u1eadn c\u1ea3nh hoa, c\u00f4n tr\u00f9ng hay chi ti\u1ebft nh\u1ecf v\u1ed1n c\u00f3 v\u00f9ng n\u00e9t c\u1ef1c m\u1ecfng do kho\u1ea3ng c\u00e1ch g\u1ea7n. Kh\u1eafc ph\u1ee5c b\u1eb1ng c\u00e1ch kh\u00e9p kh\u1ea9u \u0111\u1ed9 nh\u1ecf h\u01a1n m\u1ee9c th\u01b0\u1eddng d\u00f9ng, gi\u1eef m\u00e1y \u1ed5n \u0111\u1ecbnh (d\u00f9ng tripod n\u1ebfu c\u00f3) \u0111\u1ec3 tr\u00e1nh rung khi kh\u00e9p kh\u1ea9u l\u00e0m gi\u1ea3m s\u00e1ng, ho\u1eb7c l\u00f9i xa ch\u1ee7 th\u1ec3 m\u1ed9t ch\u00fat r\u1ed3i crop l\u1ea1i \u1ea3nh sau.<\/p>\n

\u1ea2nh trong nh\u00e0 thi\u1ebfu s\u00e1ng b\u1ecb m\u1edd nh\u00f2e to\u00e0n b\u1ed9:<\/strong> nhi\u1ec1u ng\u01b0\u1eddi nh\u1ea7m \u1ea3nh m\u1edd do thi\u1ebfu s\u00e1ng v\u1edbi l\u1ed7i \u0111\u1ed9 s\u00e2u tr\u01b0\u1eddng \u1ea3nh, nh\u01b0ng \u0111\u00e2y th\u1ef1c ch\u1ea5t l\u00e0 m\u1edd chuy\u1ec3n \u0111\u1ed9ng do t\u1ed1c \u0111\u1ed9 m\u00e0n tr\u1eadp ch\u1eadm. C\u00e1ch ph\u00e2n bi\u1ec7t: n\u1ebfu m\u1edd \u0111\u1ec1u theo h\u01b0\u1edbng chuy\u1ec3n \u0111\u1ed9ng, \u0111\u00f3 l\u00e0 t\u1ed1c \u0111\u1ed9 m\u00e0n tr\u1eadp; n\u1ebfu ch\u1ec9 h\u1eadu c\u1ea3nh m\u1edd m\u1ecbn c\u00f2n ch\u1ee7 th\u1ec3 s\u1eafc n\u00e9t, \u0111\u00f3 m\u1edbi l\u00e0 \u0111\u1ed9 s\u00e2u tr\u01b0\u1eddng \u1ea3nh. Trong \u0111i\u1ec1u ki\u1ec7n thi\u1ebfu s\u00e1ng, h\u00e3y gi\u1eef m\u00e1y \u1ed5n \u0111\u1ecbnh ho\u1eb7c t\u0103ng ISO thay v\u00ec c\u1ed1 m\u1edf kh\u1ea9u \u0111\u1ed9 h\u1ebft c\u1ee1.<\/p>\n

\"do-sau-truong-anh-la-gi-2\"<\/p>\n

C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n

\u0110\u1ed9 s\u00e2u tr\u01b0\u1eddng \u1ea3nh m\u1ecfng v\u00e0 d\u00e0y, c\u00e1i n\u00e0o t\u1ed1t h\u01a1n?<\/strong> Kh\u00f4ng c\u00f3 c\u00e1i n\u00e0o t\u1ed1t h\u01a1n tuy\u1ec7t \u0111\u1ed1i, t\u00f9y th\u1ec3 lo\u1ea1i \u1ea3nh. Ch\u00e2n dung, s\u1ea3n ph\u1ea9m h\u1ee3p v\u1edbi v\u00f9ng n\u00e9t m\u1ecfng \u0111\u1ec3 l\u00e0m n\u1ed5i b\u1eadt ch\u1ee7 th\u1ec3; phong c\u1ea3nh, ki\u1ebfn tr\u00fac, \u1ea3nh nh\u00f3m \u0111\u00f4ng ng\u01b0\u1eddi h\u1ee3p v\u1edbi v\u00f9ng n\u00e9t d\u00e0y \u0111\u1ec3 m\u1ecdi chi ti\u1ebft \u0111\u1ec1u r\u00f5.<\/p>\n

V\u00ec sao \u1ea3nh ch\u00e2n dung tr\u00ean \u0111i\u1ec7n tho\u1ea1i \u0111\u00f4i khi tr\u00f4ng gi\u1ea3?<\/strong> V\u00ec hi\u1ec7u \u1ee9ng x\u00f3a ph\u00f4ng tr\u00ean \u0111i\u1ec7n tho\u1ea1i d\u1ef1ng b\u1eb1ng ph\u1ea7n m\u1ec1m d\u1ef1a tr\u00ean d\u1eef li\u1ec7u chi\u1ec1u s\u00e2u, trong khi m\u00e1y \u1ea3nh t\u1ea1o \u0111\u1ed9 s\u00e2u tr\u01b0\u1eddng \u1ea3nh m\u1ecfng b\u1eb1ng quang h\u1ecdc th\u1eadt, n\u00ean ranh gi\u1edbi n\u00e9t – m\u1edd tr\u00ean \u0111i\u1ec7n tho\u1ea1i \u0111\u00f4i khi thi\u1ebfu chuy\u1ec3n ti\u1ebfp m\u01b0\u1ee3t.<\/p>\n

Kh\u1ea9u \u0111\u1ed9 f\/1.8 v\u00e0 f\/8 kh\u00e1c nhau th\u1ebf n\u00e0o v\u1ec1 v\u00f9ng n\u00e9t?<\/strong> \u1ede c\u00f9ng kho\u1ea3ng c\u00e1ch v\u00e0 ti\u00eau c\u1ef1, f\/1.8 cho v\u00f9ng n\u00e9t r\u1ea5t m\u1ecfng, ch\u1ec9 v\u00e0i \u0111\u1ebfn v\u00e0i ch\u1ee5c x\u0103ng-ti-m\u00e9t; f\/8 cho v\u00f9ng n\u00e9t d\u00e0y h\u01a1n nhi\u1ec1u, c\u00f3 th\u1ec3 n\u00e9t t\u1eeb v\u00e0i m\u00e9t \u0111\u1ebfn v\u00f4 c\u1ef1c, ph\u00f9 h\u1ee3p ch\u1ee5p phong c\u1ea3nh.<\/p>\n

Ch\u1ee5p macro c\u00f3 c\u1ea7n kh\u00e9p kh\u1ea9u \u0111\u1ed9 nh\u1ecf kh\u00f4ng?<\/strong> C\u00f3. Kho\u1ea3ng c\u00e1ch ch\u1ee5p macro r\u1ea5t g\u1ea7n khi\u1ebfn v\u00f9ng n\u00e9t v\u1ed1n \u0111\u00e3 c\u1ef1c m\u1ecfng, n\u1ebfu m\u1edf kh\u1ea9u \u0111\u1ed9 l\u1edbn th\u00ec g\u1ea7n nh\u01b0 ch\u1ec9 m\u1ed9t \u0111i\u1ec3m nh\u1ecf tr\u00ean ch\u1ee7 th\u1ec3 l\u00e0 n\u00e9t. Kh\u00e9p kh\u1ea9u (f\/8 \u0111\u1ebfn f\/16) gi\u00fap v\u00f9ng n\u00e9t d\u00e0y h\u01a1n, gi\u1eef \u0111\u01b0\u1ee3c nhi\u1ec1u chi ti\u1ebft.<\/p>\n

T\u1ea1i sao \u1ea3nh nh\u00f3m \u0111\u00f4ng ng\u01b0\u1eddi d\u1ec5 b\u1ecb m\u1edd h\u00e0ng sau?<\/strong> V\u00ec h\u00e0ng ng\u01b0\u1eddi ph\u00eda sau n\u1eb1m ngo\u00e0i v\u00f9ng n\u00e9t, \u0111\u1eb7c bi\u1ec7t khi ch\u1ee5p \u1edf kh\u1ea9u \u0111\u1ed9 m\u1edf l\u1edbn ho\u1eb7c d\u00f9ng ch\u1ebf \u0111\u1ed9 Ch\u00e2n dung v\u1edbi m\u1ee9c x\u00f3a ph\u00f4ng cao. Kh\u00e9p kh\u1ea9u nh\u1ecf h\u01a1n ho\u1eb7c gi\u1ea3m m\u1ee9c l\u00e0m m\u1edd h\u1eadu c\u1ea3nh s\u1ebd gi\u00fap c\u1ea3 nh\u00f3m \u0111\u1ec1u n\u00e9t.<\/p>\n

Ch\u1ebf \u0111\u1ed9 Pro c\u00f3 ki\u1ec3m so\u00e1t v\u00f9ng n\u00e9t t\u1ed1t h\u01a1n ch\u1ebf \u0111\u1ed9 Ch\u00e2n dung kh\u00f4ng?<\/strong> C\u00f3 ph\u1ea7n t\u1ed1t h\u01a1n v\u1edbi ng\u01b0\u1eddi hi\u1ec3u v\u1ec1 nhi\u1ebfp \u1ea3nh, v\u00ec ch\u1ebf \u0111\u1ed9 Pro cho ch\u1ec9nh kh\u1ea9u \u0111\u1ed9 m\u00f4 ph\u1ecfng, ISO, t\u1ed1c \u0111\u1ed9 th\u1ee7 c\u00f4ng thay v\u00ec \u0111\u1ec3 thu\u1eadt to\u00e1n t\u1ef1 quy\u1ebft \u0111\u1ecbnh nh\u01b0 ch\u1ebf \u0111\u1ed9 Ch\u00e2n dung t\u1ef1 \u0111\u1ed9ng.<\/p>\n

C\u00f3 c\u00e1ch n\u00e0o t\u0103ng \u0111\u1ed9 s\u00e2u tr\u01b0\u1eddng \u1ea3nh m\u00e0 kh\u00f4ng c\u1ea7n kh\u00e9p kh\u1ea9u kh\u00f4ng?<\/strong> C\u00f3, b\u1ea1n c\u00f3 th\u1ec3 l\u00f9i xa ch\u1ee7 th\u1ec3 h\u01a1n ho\u1eb7c chuy\u1ec3n sang ti\u00eau c\u1ef1 ng\u1eafn h\u01a1n (g\u00f3c r\u1ed9ng); c\u1ea3 hai c\u00e1ch \u0111\u1ec1u l\u00e0m v\u00f9ng n\u00e9t d\u00e0y l\u00ean m\u00e0 kh\u00f4ng c\u1ea7n \u0111\u1ed5i kh\u1ea9u \u0111\u1ed9.<\/p>\n