{"id":7663,"date":"2026-05-14T06:21:35","date_gmt":"2026-05-13T23:21:35","guid":{"rendered":"https:\/\/nhiepanhvacongnghe.com\/?p=7663"},"modified":"2026-05-14T06:21:41","modified_gmt":"2026-05-13T23:21:41","slug":"nhiep-anh-gia-thuc-trang-dem-tren-ngon-nui-bang-gia-de-chup-hien-tuong-vom-ba-thien-ha-cuc-hiem","status":"publish","type":"post","link":"https:\/\/nhiepanhvacongnghe.com\/index.php\/2026\/05\/14\/nhiep-anh-gia-thuc-trang-dem-tren-ngon-nui-bang-gia-de-chup-hien-tuong-vom-ba-thien-ha-cuc-hiem\/","title":{"rendered":"Nhi\u1ebfp \u1ea3nh gia th\u1ee9c tr\u1eafng \u0111\u00eam tr\u00ean ng\u1ecdn n\u00fai b\u0103ng gi\u00e1 \u0111\u1ec3 ch\u1ee5p hi\u1ec7n t\u01b0\u1ee3ng \u201cV\u00f2m Ba Thi\u00ean H\u00e0\u201d c\u1ef1c hi\u1ebfm."},"content":{"rendered":"\n

Hai nh\u00e1nh c\u1ee7a D\u1ea3i Ng\u00e2n H\u00e0 c\u00f9ng hi\u1ec7n t\u01b0\u1ee3ng Gegenschein do \u00e1nh s\u00e1ng M\u1eb7t Tr\u1eddi t\u00e1n x\u1ea1 g\u00e2y ra. | \u1ea2nh: Angel Fux<\/p>\n\n\n\n

R\u1ea5t \u00edt ng\u01b0\u1eddi c\u00f3 c\u01a1 h\u1ed9i chi\u00eam ng\u01b0\u1ee1ng tr\u1ecdn v\u1eb9n v\u1ebb h\u00f9ng v\u0129 c\u1ee7a v\u00f2m D\u1ea3i Ng\u00e2n H\u00e0 \u2014 v\u00e0 c\u00e0ng hi\u1ebfm h\u01a1n n\u1eefa l\u00e0 \u0111\u01b0\u1ee3c th\u1ea5y c\u1ea3 nh\u00e1nh m\u00f9a h\u00e8 l\u1eabn nh\u00e1nh m\u00f9a \u0111\u00f4ng trong c\u00f9ng m\u1ed9t \u0111\u00eam.<\/p>\n\n\n\n

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N\u1eef nhi\u1ebfp \u1ea3nh gia gan d\u1ea1 Angel Fux \u0111\u00e3 ph\u1ea3i l\u00ean k\u1ebf ho\u1ea1ch c\u1ef1c k\u1ef3 t\u1ec9 m\u1ec9 cho chuy\u1ebfn \u0111i t\u1edbi \u0111\u1ec9nh Dent d\u2019H\u00e9rens n\u1eb1m gi\u1eefa bi\u00ean gi\u1edbi \u00dd v\u00e0 Th\u1ee5y S\u0129 \u2014 m\u1ed9t ng\u1ecdn n\u00fai cao g\u1ea7n 4.300 m\u00e9t n\u1eb1m g\u1ea7n Matterhorn \u2014 n\u01a1i c\u00f4 s\u1ebd ph\u1ea3i qua \u0111\u00eam trong \u0111i\u1ec1u ki\u1ec7n nhi\u1ec7t \u0111\u1ed9 xu\u1ed1ng g\u1ea7n \u00e2m 28 \u0111\u1ed9 C.<\/p>\n\n\n\n

M\u1ed9t b\u1ee9c \u1ea3nh m\u1edd cho th\u1ea5y chi\u1ebfc m\u00e1y \u1ea3nh \u0111\u1eb7t tr\u00ean tripod \u0111ang h\u01b0\u1edbng v\u1ec1 \u0111\u1ec9nh n\u00fai ph\u1ee7 tuy\u1ebft \u1edf ph\u00eda xa v\u00e0o l\u00fac ch\u1ea1ng v\u1ea1ng, v\u1edbi b\u1ea7u tr\u1eddi xanh t\u00edm ph\u00eda sau.
Ch\u1ee5p \u1ea3nh ph\u00eda tr\u00ean Matterhorn.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Hi\u1ec7n t\u01b0\u1ee3ng \u201cv\u00f2m k\u00e9p\u201d c\u1ee7a D\u1ea3i Ng\u00e2n H\u00e0 ch\u1ec9 xu\u1ea5t hi\u1ec7n trong m\u1ed9t kho\u1ea3ng th\u1eddi gian r\u1ea5t ng\u1eafn m\u1ed7i n\u0103m, th\u01b0\u1eddng v\u00e0o th\u1eddi \u0111i\u1ec3m xu\u00e2n ph\u00e2n ho\u1eb7c thu ph\u00e2n.<\/p>\n\n\n\n

\u201cT\u00f4i ph\u00e1t hi\u1ec7n hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y c\u00e1ch \u0111\u00e2y kho\u1ea3ng hai ho\u1eb7c ba n\u0103m. Ngay t\u1eeb khi hi\u1ec3u n\u00f3 l\u00e0 g\u00ec, t\u00f4i \u0111\u00e3 bi\u1ebft m\u00ecnh mu\u1ed1n ch\u1ee5p n\u00f3,\u201d Fux chia s\u1ebb v\u1edbi PetaPixel.<\/p>\n\n\n\n

\u201cN\u0103m ngo\u00e1i t\u00f4i th\u1eed ch\u1ee5p l\u1ea7n \u0111\u1ea7u \u1edf \u0111\u1ed9 cao kho\u1ea3ng 3.000 m\u00e9t v\u00e0 b\u1ee9c \u1ea3nh \u0111\u00e3 nh\u1eadn \u0111\u01b0\u1ee3c r\u1ea5t nhi\u1ec1u s\u1ef1 ch\u00fa \u00fd. Sau \u0111\u00f3 t\u00f4i th\u1ea5y ng\u00e0y c\u00e0ng nhi\u1ec1u nhi\u1ebfp \u1ea3nh gia th\u1eed ch\u1ee5p hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y, \u0111i\u1ec1u \u0111\u00f3 khi\u1ebfn t\u00f4i th\u1ef1c s\u1ef1 h\u00e0o h\u1ee9ng.\u201d<\/p>\n\n\n\n

Khung c\u1ea3nh to\u00e0n c\u1ea3nh n\u00fai tuy\u1ebft d\u01b0\u1edbi b\u1ea7u tr\u1eddi \u0111\u1ea7y sao v\u1edbi D\u1ea3i Ng\u00e2n H\u00e0 hi\u1ec7n r\u00f5; m\u1ed9t ng\u01b0\u1eddi m\u1eb7c \u00e1o v\u00e0ng \u0111\u1ee9ng b\u00ean tr\u00e1i v\u00e0 chi\u1ebfc l\u1ec1u m\u00e0u cam ph\u00e1t s\u00e1ng \u1edf s\u01b0\u1eddn n\u00fai b\u00ean ph\u1ea3i.
N\u1ed7 l\u1ef1c n\u0103m ngo\u00e1i tr\u00ean \u0111\u1ec9nh Gornergrat.<\/p>\n\n\n\n

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Nh\u01b0ng \u0111\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c b\u1ee9c \u1ea3nh t\u1ed1t h\u01a1n, Fux c\u1ea7n b\u1ea7u tr\u1eddi t\u1ed1i h\u01a1n \u2014 \u0111i\u1ec1u \u0111\u00f3 \u0111\u1ed3ng ngh\u0129a ph\u1ea3i leo cao h\u01a1n n\u1eefa. Dent d\u2019H\u00e9rens l\u00e0 v\u1ecb tr\u00ed ho\u00e0n h\u1ea3o, nh\u01b0ng \u0111\u00e2y l\u00e0 m\u1ed9t \u0111\u1ec9nh n\u00fai m\u00e0 ngay c\u1ea3 nhi\u1ec1u nh\u00e0 leo n\u00fai chuy\u00ean nghi\u1ec7p c\u0169ng kh\u00f4ng d\u00e1m th\u1eed s\u1ee9c.<\/p>\n\n\n\n

\u201cC\u00e1c nhi\u1ebfp \u1ea3nh gia kh\u00f4ng l\u00ean \u0111\u00f3, ch\u1eafc ch\u1eafn kh\u00f4ng ph\u1ea3i v\u00e0o m\u00f9a \u0111\u00f4ng, v\u00e0 c\u00e0ng kh\u00f4ng ph\u1ea3i v\u00e0o ban \u0111\u00eam,\u201d Fux \u2014 ng\u01b0\u1eddi s\u1ed1ng t\u1ea1i d\u00e3y Alps \u2014 vi\u1ebft tr\u00ean blog c\u1ee7a m\u00ecnh. \u201cThi\u1ebft b\u1ecb d\u00e0nh cho ch\u1ee5p \u1ea3nh thi\u00ean v\u0103n v\u00e0 thi\u1ebft b\u1ecb leo n\u00fai cao th\u01b0\u1eddng g\u1ea7n nh\u01b0 kh\u00f4ng th\u1ec3 t\u01b0\u01a1ng th\u00edch v\u1edbi nhau.\u201d<\/p>\n\n\n\n

M\u1ed9t chi\u1ebfc tr\u1ef1c th\u0103ng l\u01a1 l\u1eedng ph\u00eda tr\u00ean n\u1ec1n tuy\u1ebft trong khi m\u1ed9t ng\u01b0\u1eddi m\u1eb7c \u0111\u1ed3 \u0111\u1ecf di chuy\u1ec3n gi\u1eefa gi\u00f3 tuy\u1ebft d\u1eef d\u1ed9i.
Fux qu\u00e1 giang b\u1eb1ng tr\u1ef1c th\u0103ng.<\/p>\n\n\n\n

Fux nh\u1edd s\u1ef1 h\u1ed7 tr\u1ee3 c\u1ee7a h\u01b0\u1edbng d\u1eabn vi\u00ean leo n\u00fai Richard Lehner. C\u1ea3 hai c\u00f9ng l\u00ean k\u1ebf ho\u1ea1ch d\u00f9ng tr\u1ef1c th\u0103ng \u0111\u1ec3 l\u00ean \u0111\u1ec9nh n\u00fai.<\/p>\n\n\n\n

Ngo\u00e0i chi\u1ebfc Nikon Z6 II<\/a> \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ec9nh s\u1eeda \u0111\u1ec3 ch\u1ee5p thi\u00ean v\u0103n, \u1ed1ng k\u00ednh Nikkor Z 20mm f\/1.8 v\u00e0 b\u1ed9 theo d\u00f5i sao Benro Polaris, Fux c\u00f2n mang theo t\u00fai ng\u1ee7 ch\u1ecbu \u0111\u01b0\u1ee3c \u00e2m 30 \u0111\u1ed9 C, gi\u00e0y leo n\u00fai ba l\u1edbp c\u00f3 th\u1ec3 g\u1eafn crampon v\u00e0 r\u1ea5t nhi\u1ec1u qu\u1ea7n \u00e1o gi\u1eef nhi\u1ec7t.<\/p>\n\n\n\n

\u201cCh\u00fang t\u00f4i c\u00f2n chu\u1ea9n b\u1ecb c\u1ea3 h\u1ec7 th\u1ed1ng d\u00e2y v\u00e0 \u0111ai b\u1ea3o h\u1ed9 v\u00ec m\u1ed9t khi l\u00ean t\u1edbi \u0111\u1ec9nh, t\u00f4i ph\u1ea3i lu\u00f4n \u0111\u01b0\u1ee3c n\u1ed1i d\u00e2y m\u1ed7i khi ra kh\u1ecfi l\u1ec1u,\u201d c\u00f4 n\u00f3i th\u00eam. \u201cC\u00e1c cornice tuy\u1ebft quanh khu v\u1ef1c \u0111\u00f3 khi\u1ebfn vi\u1ec7c di chuy\u1ec3n kh\u00f4ng c\u00f3 d\u00e2y b\u1ea3o hi\u1ec3m th\u1ef1c s\u1ef1 r\u1ea5t nguy hi\u1ec3m.\u201d<\/p>\n\n\n\n

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Th\u1eadm ch\u00ed c\u00f2n c\u00f3 kh\u1ea3 n\u0103ng tr\u1ef1c th\u0103ng kh\u00f4ng th\u1ec3 quay l\u1ea1i \u0111\u00f3n h\u1ecd v\u00e0o s\u00e1ng h\u00f4m sau. M\u1ee9c \u0111\u1ed9 nguy hi\u1ec3m c\u1ee7a chuy\u1ebfn \u0111i khi\u1ebfn Fux ng\u1ea7n ng\u1ea1i k\u1ec3 v\u1edbi gia \u0111\u00ecnh v\u00e0 b\u1ea1n b\u00e8.<\/p>\n\n\n\n

\u201cKhi t\u00f4i cho b\u1ed1 m\u1eb9 xem n\u01a1i ch\u00fang t\u00f4i s\u1ebd h\u1ea1 c\u00e1nh v\u00e0 ng\u1ee7 qua \u0111\u00eam, n\u00f3 \u0111\u00fang ki\u1ec3u leo n\u00fai cao nguy hi\u1ec3m, v\u00e0 h\u1ecd th\u1ef1c s\u1ef1 ho\u1ea3ng, h\u1ecfi t\u1ea1i sao t\u00f4i ph\u1ea3i t\u1edbi n\u01a1i nh\u01b0 v\u1eady ch\u1ec9 \u0111\u1ec3 ch\u1ee5p m\u1ed9t b\u1ee9c \u1ea3nh,\u201d c\u00f4 k\u1ec3.<\/p>\n\n\n\n

\u201cC\u00e2u tr\u1ea3 l\u1eddi c\u1ee7a t\u00f4i th\u01b0\u1eddng l\u00e0: n\u1ebfu m\u1ed9t \u0111i\u1ec1u g\u00ec \u0111\u00f3 khi\u1ebfn m\u00ecnh rung \u0111\u1ed9ng s\u00e2u s\u1eafc, v\u00e0 r\u1ee7i ro v\u1eabn trong m\u1ee9c ki\u1ec3m so\u00e1t \u0111\u01b0\u1ee3c, th\u00ec t\u1ea1i sao l\u1ea1i kh\u00f4ng theo \u0111u\u1ed5i n\u00f3?\u201d<\/p>\n\n\n\n

\u0110\u00e2y ho\u00e0n to\u00e0n kh\u00f4ng ph\u1ea3i m\u00e0n tr\u00ecnh di\u1ec5n li\u1ec1u l\u0129nh. \u0110\u00f3 l\u00e0 m\u1ee9c chu\u1ea9n b\u1ecb t\u1ed1i thi\u1ec3u \u0111\u1ec3 c\u00f3 th\u1ec3 s\u1ed1ng s\u00f3t qua \u0111\u00eam h\u00f4m \u1ea5y.<\/p>\n\n\n\n

Fux t\u1edbi Gornergrat s\u1edbm \u0111\u1ec3 th\u00edch nghi \u0111\u1ed9 cao v\u00e0 luy\u1ec7n t\u1eadp v\u1edbi thi\u1ebft b\u1ecb. T\u1ea1i \u0111\u00f3 c\u00f4 ph\u00e1t hi\u1ec7n m\u1ed9t v\u1ea5n \u0111\u1ec1 v\u1edbi m\u00e1y \u1ea3nh.<\/p>\n\n\n\n

\u201cN\u00f3 ch\u1ee5p li\u00ean t\u1ee5c su\u1ed1t m\u1ed9t ti\u1ebfng r\u01b0\u1ee1i nh\u01b0ng kh\u00f4ng l\u01b0u \u0111\u01b0\u1ee3c g\u00ec,\u201d c\u00f4 k\u1ec3. \u201c\u1ea2nh v\u1eabn hi\u1ec7n tr\u00ean m\u00e0n h\u00ecnh nh\u01b0ng kh\u00f4ng c\u00f3 trong th\u1ebb nh\u1edb. H\u00f3a ra \u0111\u00e2y l\u00e0 l\u1ed7i kh\u00e1 ph\u1ed5 bi\u1ebfn v\u1edbi m\u00e1y mirrorless trong m\u00f4i tr\u01b0\u1eddng c\u1ef1c l\u1ea1nh, nh\u01b0ng tr\u01b0\u1edbc \u0111\u00f3 t\u00f4i ch\u01b0a t\u1eebng g\u1eb7p.\u201d<\/p>\n\n\n\n

\u201cSau \u0111\u00f3 t\u00f4i ph\u00e1t hi\u1ec7n ch\u1ec9 c\u1ea7n t\u1eaft r\u1ed3i b\u1eadt m\u00e1y l\u1ea1i l\u00e0 \u0111\u01b0\u1ee3c,\u201d c\u00f4 n\u00f3i th\u00eam. \u201cNh\u01b0ng \u0111i\u1ec1u \u0111\u00f3 c\u0169ng c\u00f3 ngh\u0129a l\u00e0 ph\u1ea3i li\u00ean t\u1ee5c ki\u1ec3m tra \u1ea3nh \u0111\u1ec3 ch\u1eafc ch\u1eafn kh\u00f4ng b\u1ecb m\u1ea5t d\u1eef li\u1ec7u.\u201d<\/p>\n\n\n\n

Cu\u1ed1i c\u00f9ng, v\u00e0o ng\u00e0y 19 th\u00e1ng 3, Fux c\u00f9ng Richard v\u00e0 con trai \u00f4ng l\u00e0 Arnaud bay t\u1edbi \u0111\u1ec9nh Dent d\u2019H\u00e9rens.<\/p>\n\n\n\n

\u201cKho\u1ea3nh kh\u1eafc chi\u1ebfc tr\u1ef1c th\u0103ng r\u1eddi \u0111i v\u00e0 ti\u1ebfng \u0111\u1ed9ng c\u01a1 d\u1ea7n bi\u1ebfn m\u1ea5t, t\u00f4i c\u1ea3m th\u1ea5y m\u1ecdi th\u1ee9 tr\u1edf n\u00ean r\u1ea5t th\u1eadt,\u201d c\u00f4 vi\u1ebft. \u201c\u00cdt nh\u1ea5t cho t\u1edbi s\u00e1ng h\u00f4m sau, kh\u00f4ng c\u00f2n \u0111\u01b0\u1eddng quay l\u1ea1i n\u1eefa.\u201d<\/p>\n\n\n\n

L\u1ecbch tr\u00ecnh ch\u1ee5p \u1ea3nh nghi\u00eam ng\u1eb7t c\u1ee7a Fux k\u00e9o d\u00e0i t\u1eeb 17:30 t\u1edbi 7:10 s\u00e1ng h\u00f4m sau.
L\u1ecbch thi\u00ean v\u0103n bao g\u1ed3m th\u1eddi \u0111i\u1ec3m ho\u00e0ng h\u00f4n, gi\u1edd xanh, gi\u1edd h\u00e0ng h\u1ea3i v\u00e0 th\u1eddi gian xu\u1ea5t hi\u1ec7n c\u1ee7a hai nh\u00e1nh D\u1ea3i Ng\u00e2n H\u00e0.<\/p>\n\n\n\n

B\u1ea5t ng\u1edd t\u1eeb b\u1ea7u tr\u1eddi<\/h3>\n\n\n\n

Trong n\u1eeda \u0111\u1ea7u \u0111\u00eam, nh\u00e1nh m\u00f9a \u0111\u00f4ng xu\u1ea5t hi\u1ec7n. N\u1eeda sau \u0111\u00eam l\u00e0 nh\u00e1nh m\u00f9a h\u00e8. Trong hai nh\u00e1nh n\u00e0y, nh\u00e1nh m\u00f9a h\u00e8 n\u1ed5i ti\u1ebfng h\u01a1n v\u00ec ch\u1ee9a t\u00e2m Ng\u00e2n H\u00e0 v\u00e0 d\u00e0y \u0111\u1eb7c c\u00e1c tinh v\u00e2n, c\u1ee5m sao.<\/p>\n\n\n\n

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Nh\u01b0ng khi xem l\u1ea1i \u1ea3nh, Fux nh\u1eadn ra c\u00f2n c\u00f3 m\u1ed9t v\u00f2ng cung th\u1ee9 ba kh\u00f4ng thu\u1ed9c D\u1ea3i Ng\u00e2n H\u00e0.<\/p>\n\n\n\n

\u201c\u0110\u00f3 l\u00e0 m\u1ed9t v\u00f2ng cung h\u00ecnh oval r\u1ea5t m\u1edd k\u00e9o d\u00e0i \u1edf h\u01b0\u1edbng \u0111\u1ed1i di\u1ec7n M\u1eb7t Tr\u1eddi, t\u1ea1o n\u00ean m\u1ed9t d\u1ea3i chuy\u1ec3n s\u1eafc nh\u1eb9 nh\u01b0ng kh\u00f4ng th\u1ec3 nh\u1ea7m l\u1eabn,\u201d c\u00f4 n\u00f3i.<\/p>\n\n\n\n

\u201cHi\u1ec7n t\u01b0\u1ee3ng n\u00e0y g\u1ecdi l\u00e0 Gegenschein, hay c\u00f2n g\u1ecdi l\u00e0 \u2018counterglow\u2019 \u2014 v\u00f9ng s\u00e1ng khu\u1ebfch t\u00e1n tr\u00ean b\u1ea7u tr\u1eddi \u0111\u00eam do \u00e1nh s\u00e1ng M\u1eb7t Tr\u1eddi ph\u1ea3n x\u1ea1 ng\u01b0\u1ee3c t\u1eeb b\u1ee5i li\u00ean h\u00e0nh tinh \u1edf v\u1ecb tr\u00ed \u0111\u1ed1i di\u1ec7n M\u1eb7t Tr\u1eddi.\u201d<\/p>\n\n\n\n

Khung c\u1ea3nh n\u00fai tuy\u1ebft d\u01b0\u1edbi b\u1ea7u tr\u1eddi \u0111\u1ea7y sao v\u1edbi D\u1ea3i Ng\u00e2n H\u00e0 v\u00e0 v\u00f2ng s\u00e1ng Gegenschein k\u00e9o d\u00e0i ngang tr\u1eddi.<\/p>\n\n\n\n

\u201cN\u00f3 c\u1ef1c k\u1ef3 m\u1edd v\u00e0 r\u1ea5t hi\u1ebfm khi \u0111\u01b0\u1ee3c ch\u1ee5p l\u1ea1i trong nhi\u1ebfp \u1ea3nh. N\u00f3 xu\u1ea5t hi\u1ec7n r\u00f5 ngay c\u1ea3 \u1edf file ch\u01b0a x\u1eed l\u00fd, khi\u1ebfn t\u00f4i l\u1eadp t\u1ee9c hi\u1ec3u r\u1eb1ng b\u1ee9c \u1ea3nh cu\u1ed1i c\u00f9ng s\u1ebd c\u00f2n nhi\u1ec1u th\u1ee9 h\u01a1n t\u00f4i d\u1ef1 t\u00ednh,\u201d c\u00f4 cho bi\u1ebft.<\/p>\n\n\n\n

V\u00f2m k\u00e9p gi\u1edd \u0111\u00e3 tr\u1edf th\u00e0nh \u201cv\u00f2m ba thi\u00ean h\u00e0\u201d. Sau khi tr\u1edf v\u1ec1 an to\u00e0n, Fux b\u1eaft \u0111\u1ea7u b\u01b0\u1edbc v\u00e0o giai \u0111o\u1ea1n h\u1eadu k\u1ef3.<\/p>\n\n\n\n

Ba ng\u01b0\u1eddi m\u1eb7c \u00e1o kho\u00e1c m\u00f9a \u0111\u00f4ng \u0111\u1ee9ng tr\u00ean \u0111\u1ec9nh n\u00fai tuy\u1ebft m\u1ec9m c\u01b0\u1eddi \u0103n m\u1eebng sau \u0111\u00eam d\u00e0i kh\u1eafc nghi\u1ec7t.<\/p>\n\n\n\n

40 gi\u1edd v\u00e0 300GB d\u1eef li\u1ec7u<\/h3>\n\n\n\n
\"\"<\/figure>\n\n\n\n

Fux cho bi\u1ebft \u0111\u00e2y l\u00e0 kho\u1ea3ng th\u1eddi gian h\u1eadu k\u1ef3 d\u00e0i nh\u1ea5t c\u00f4 t\u1eebng d\u00e0nh cho m\u1ed9t b\u1ee9c \u1ea3nh \u2014 t\u1ed5ng c\u1ed9ng 40 gi\u1edd.<\/p>\n\n\n\n

\u201cL\u1ea7n n\u00e0y t\u00f4i l\u00e0m vi\u1ec7c ho\u00e0n to\u00e0n v\u1edbi file FITS, \u0111\u1ecbnh d\u1ea1ng d\u00f9ng trong thi\u00ean v\u0103n h\u1ecdc chuy\u00ean nghi\u1ec7p, l\u01b0u d\u1eef li\u1ec7u \u00e1nh s\u00e1ng th\u00f4 v\u1edbi \u0111\u1ed9 s\u00e2u m\u00e0u v\u00e0 dynamic range l\u1edbn h\u01a1n nhi\u1ec1u so v\u1edbi file RAW m\u1edf tr\u1ef1c ti\u1ebfp trong Photoshop,\u201d c\u00f4 gi\u1ea3i th\u00edch.<\/p>\n\n\n\n

\u201cTrong khi Photoshop ch\u1ec9 l\u00e0m vi\u1ec7c \u1edf 16-bit, file FITS gi\u1eef l\u1ea1i g\u1ea7n nh\u01b0 to\u00e0n b\u1ed9 \u0111\u1ed9 ch\u00ednh x\u00e1c d\u1eef li\u1ec7u t\u1eeb c\u1ea3m bi\u1ebfn, gi\u00fap nhi\u1ec1u th\u00f4ng tin h\u01a1n \u0111\u01b0\u1ee3c \u0441\u043e\u0445\u0440\u0430\u043d qua qu\u00e1 tr\u00ecnh stacking.\u201d<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\u0110\u1ec3 t\u1ea1o n\u00ean b\u1ee9c \u1ea3nh cu\u1ed1i c\u00f9ng, c\u00f4 stack t\u1eebng pano b\u1eb1ng ph\u1ea7n m\u1ec1m PixInsight, gh\u00e9p c\u00e1c file FITS b\u1eb1ng AstroPixel Processor r\u1ed3i quay l\u1ea1i PixInsight \u0111\u1ec3 c\u00e2n ch\u1ec9nh v\u00e0 x\u1eed l\u00fd b\u1ea7u tr\u1eddi.<\/p>\n\n\n\n

Fux m\u00f4 t\u1ea3 qu\u00e1 tr\u00ecnh n\u00e0y c\u1ef1c k\u1ef3 \u201ctra t\u1ea5n\u201d: 10 ti\u1ebfng \u0111\u1ea7u ti\u00ean ch\u1ec9 l\u00e0 nh\u00ecn v\u00e0o c\u00e1c con s\u1ed1, histogram, script c\u00e2n ch\u1ec9nh v\u00e0 d\u00f2ng l\u1ec7nh \u2014 ho\u00e0n to\u00e0n ch\u01b0a th\u1ea5y h\u00ecnh \u1ea3nh n\u00e0o.<\/p>\n\n\n\n

\u201cV\u1edbi m\u1ed9t ng\u01b0\u1eddi quen l\u00e0m vi\u1ec7c b\u1eb1ng th\u1ecb gi\u00e1c nh\u01b0 t\u00f4i, \u0111i\u1ec1u \u0111\u00f3 th\u1eadt s\u1ef1 r\u1ea5t m\u1ea5t ph\u01b0\u01a1ng h\u01b0\u1edbng,\u201d c\u00f4 n\u00f3i th\u00eam.<\/p>\n\n\n\n

C\u00f4 th\u1eeba nh\u1eadn \u0111\u00e3 nhi\u1ec1u l\u1ea7n mu\u1ed1n n\u00e9m m\u00e1y t\u00ednh ra ngo\u00e0i c\u1eeda s\u1ed5.<\/p>\n\n\n\n

B\u1ee9c \u1ea3nh cu\u1ed1i c\u00f9ng g\u1ed3m 260 t\u1ea5m ph\u01a1i s\u00e1ng ri\u00eang bi\u1ec7t:<\/p>\n\n\n\n

    \n
  • 17 khung cho nh\u00e1nh m\u00f9a \u0111\u00f4ng<\/li>\n\n\n\n
  • 16 khung cho nh\u00e1nh m\u00f9a h\u00e8<\/li>\n\n\n\n
  • m\u1ed7i khung g\u1ed3m stack c\u1ee7a 4 \u1ea3nh tracking ph\u01a1i s\u00e1ng 40 gi\u00e2y<\/li>\n\n\n\n
  • th\u00eam d\u1eef li\u1ec7u H-alpha ch\u1ee5p b\u1eb1ng filter 12nm<\/li>\n\n\n\n
  • c\u00f9ng 32 \u1ea3nh phong c\u1ea3nh ch\u1ee5p l\u00fac ch\u1ea1ng v\u1ea1ng h\u00e0ng h\u1ea3i<\/li>\n<\/ul>\n\n\n\n

    T\u1ed5ng dung l\u01b0\u1ee3ng d\u1ef1 \u00e1n kho\u1ea3ng 300GB.<\/p>\n\n\n\n

    B\u1ee9c \u1ea3nh ho\u00e0n thi\u1ec7n cho th\u1ea5y Matterhorn, nh\u00e1nh m\u00f9a h\u00e8 c\u1ee7a D\u1ea3i Ng\u00e2n H\u00e0 b\u00ean tr\u00e1i, Gegenschein \u1edf gi\u1eefa v\u00e0 nh\u00e1nh m\u00f9a \u0111\u00f4ng b\u00ean ph\u1ea3i.<\/p>\n\n\n\n

    \u0110\u00e2y l\u00e0 m\u1ed9t g\u00f3c nh\u00ecn \u0111\u1ed9c nh\u1ea5t v\u1ec1 d\u00e3y Alps c\u00f9ng hi\u1ec7n t\u01b0\u1ee3ng thi\u00ean v\u0103n ch\u01b0a t\u1eebng \u0111\u01b0\u1ee3c ghi l\u1ea1i theo c\u00e1ch n\u00e0y tr\u01b0\u1edbc \u0111\u00e2y. \u0110\u1ed3ng th\u1eddi, n\u00f3 c\u0169ng l\u00e0 khung c\u1ea3nh \u0111ang d\u1ea7n bi\u1ebfn m\u1ea5t khi \u00f4 nhi\u1ec5m \u00e1nh s\u00e1ng ng\u00e0y c\u00e0ng lan r\u1ed9ng.<\/p>\n\n\n\n

    \u201cT\u1ea1i ch\u00e2u \u00c2u, n\u1ebfu mu\u1ed1n c\u00f3 b\u1ea7u tr\u1eddi th\u1eadt s\u1ef1 t\u1ed1i v\u00e0 t\u1ea7m nh\u00ecn 360 \u0111\u1ed9 kh\u00f4ng b\u1ecb c\u1ea3n tr\u1edf, b\u1ea1n ph\u1ea3i leo l\u00ean r\u1ea5t cao \u2014 b\u1edfi \u00f4 nhi\u1ec5m \u00e1nh s\u00e1ng hi\u1ec7n di\u1ec7n \u1edf kh\u1eafp n\u01a1i d\u01b0\u1edbi th\u1ea5p,\u201d c\u00f4 n\u00f3i.<\/p>\n\n\n\n

    C\u00f2n v\u1ec1 ph\u1ea3n \u1ee9ng c\u1ee7a b\u1ed1 m\u1eb9?<\/p>\n\n\n\n

    \u201cKhi t\u00f4i tr\u1edf v\u1ec1 v\u00e0 cho h\u1ecd xem b\u1ee9c \u1ea3nh ho\u00e0n ch\u1ec9nh v\u00e0i ng\u00e0y sau \u0111\u00f3, th\u00e1i \u0111\u1ed9 c\u1ee7a h\u1ecd thay \u0111\u1ed5i ho\u00e0n to\u00e0n,\u201d c\u00f4 k\u1ec3. \u201cH\u1ecd n\u00f3i mu\u1ed1n l\u00e0 nh\u1eefng ng\u01b0\u1eddi \u0111\u1ea7u ti\u00ean s\u1edf h\u1eefu b\u1ea3n in kh\u1ed5 l\u1edbn c\u1ee7a b\u1ee9c \u1ea3nh. T\u00f4i ngh\u0129 \u0111i\u1ec1u \u0111\u00f3 \u0111\u00e3 tr\u1ea3 l\u1eddi cho t\u1ea5t c\u1ea3.\u201d<\/p>\n\n\n\n

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

    Hai nh\u00e1nh c\u1ee7a D\u1ea3i Ng\u00e2n H\u00e0 c\u00f9ng hi\u1ec7n t\u01b0\u1ee3ng Gegenschein do \u00e1nh s\u00e1ng M\u1eb7t Tr\u1eddi t\u00e1n x\u1ea1 g\u00e2y ra. | \u1ea2nh: Angel Fux R\u1ea5t \u00edt ng\u01b0\u1eddi c\u00f3 c\u01a1 h\u1ed9i chi\u00eam ng\u01b0\u1ee1ng tr\u1ecdn v\u1eb9n v\u1ebb h\u00f9ng v\u0129 c\u1ee7a v\u00f2m D\u1ea3i Ng\u00e2n H\u00e0 \u2014 v\u00e0 c\u00e0ng hi\u1ebfm h\u01a1n n\u1eefa l\u00e0 \u0111\u01b0\u1ee3c th\u1ea5y c\u1ea3 nh\u00e1nh m\u00f9a h\u00e8 l\u1eabn […]<\/p>\n","protected":false},"author":1,"featured_media":7664,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4,8,7,3],"tags":[],"class_list":["post-7663","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tech","category-danh-gia-san-pham","category-tip-chup-anh-dep","category-trai-nghiem-san-pham"],"yoast_head":"\nNhi\u1ebfp \u1ea3nh gia th\u1ee9c 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