{"id":43,"date":"2026-04-09T18:45:47","date_gmt":"2026-04-09T18:45:47","guid":{"rendered":"https:\/\/kinhmathoanggia.com\/?p=43"},"modified":"2026-04-09T18:45:47","modified_gmt":"2026-04-09T18:45:47","slug":"thay-gong-kinh-giu-trong-duoc-khong-5-sai-lam-can-tranh","status":"publish","type":"post","link":"https:\/\/kinhmathoanggia.com\/index.php\/2026\/04\/09\/thay-gong-kinh-giu-trong-duoc-khong-5-sai-lam-can-tranh\/","title":{"rendered":"Thay g\u1ecdng k\u00ednh gi\u1eef tr\u00f2ng \u0111\u01b0\u1ee3c kh\u00f4ng? 5 sai l\u1ea7m c\u1ea7n tr\u00e1nh"},"content":{"rendered":"

Thay g\u1ecdng k\u00ednh gi\u1eef tr\u00f2ng c\u00f3 \u0111\u01b0\u1ee3c kh\u00f4ng?<\/strong><\/h2>\n

B\u1ea1n ho\u00e0n to\u00e0n c\u00f3 th\u1ec3 thay g\u1ecdng k\u00ednh m\u1edbi v\u00e0 gi\u1eef l\u1ea1i tr\u00f2ng k\u00ednh c\u0169, nh\u01b0ng \u0111i\u1ec1u n\u00e0y ph\u1ee5 thu\u1ed9c r\u1ea5t nhi\u1ec1u v\u00e0o y\u1ebfu t\u1ed1 k\u1ef9 thu\u1eadt. V\u1edbi 3 n\u0103m kinh nghi\u1ec7m t\u1ea1i K\u00ednh H\u1ea3i Tri\u1ec1u, t\u00f4i s\u1ebd cung c\u1ea5p cho b\u1ea1n th\u00f4ng tin chi ti\u1ebft v\u1ec1 nh\u1eefng tr\u01b0\u1eddng h\u1ee3p n\u00ean\/kh\u00f4ng n\u00ean gi\u1eef l\u1ea1i tr\u00f2ng.<\/p>\n

1. Nh\u1eefng tr\u01b0\u1eddng h\u1ee3p c\u00f3 th\u1ec3 gi\u1eef tr\u00f2ng<\/strong><\/h3>\n

T\u00f4i r\u1ea5t hi\u1ec3u mong mu\u1ed1n t\u1eadn d\u1ee5ng l\u1ea1i c\u1eb7p tr\u00f2ng k\u00ednh c\u0169 c\u1ee7a b\u1ea1n, b\u1edfi nhi\u1ec1u kh\u00e1ch h\u00e0ng t\u1ea1i K\u00ednh H\u1ea3i Tri\u1ec1u c\u0169ng c\u00f3 chung t\u00e2m l\u00fd n\u00e0y. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 nh\u1eefng tr\u01b0\u1eddng h\u1ee3p l\u00fd t\u01b0\u1edfng nh\u1ea5t \u0111\u1ec3 b\u1ea1n c\u00f3 th\u1ec3 gi\u1eef l\u1ea1i tr\u00f2ng k\u00ednh c\u1ee7a m\u00ecnh m\u1ed9t c\u00e1ch an to\u00e0n v\u00e0 \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng th\u1ecb l\u1ef1c:<\/p>\n

Mua l\u1ea1i g\u1ecdng k\u00ednh m\u1edbi gi\u1ed1ng h\u1ec7t g\u1ecdng c\u0169<\/strong><\/p>\n

\u0110\u1ec3 ch\u1eafc ch\u1eafn nh\u1ea5t, b\u1ea1n h\u00e3y t\u00ecm mua m\u1eabu g\u1ecdng m\u1edbi c\u00f3 th\u00f4ng s\u1ed1 tr\u00f9ng kh\u1edbp ho\u00e0n to\u00e0n v\u1edbi g\u1ecdng c\u0169 (c\u00f9ng m\u00e3 m\u00e0u, h\u00ecnh d\u00e1ng v\u00e0 k\u00edch th\u01b0\u1edbc). \u0110i\u1ec1u n\u00e0y gi\u00fap tr\u00f2ng k\u00ednh v\u1eeba v\u1eb7n m\u00e0 kh\u00f4ng c\u1ea7n ph\u1ea3i m\u00e0i g\u1ecdt, gi\u1eef nguy\u00ean \u0111\u01b0\u1ee3c t\u00e2m quang h\u1ecdc.<\/p>\n

\n
\"Thay
B\u1ea1n n\u00ean ch\u1ecdn g\u1ecdng m\u1edbi gi\u1ed1ng h\u1ec7t g\u1ecdng c\u0169 \u0111\u1ec3 t\u00e1i s\u1eed d\u1ee5ng l\u1ea1i tr\u00f2ng k\u00ednh<\/em><\/figcaption><\/figure>\n<\/div>\n

G\u1ecdng k\u00ednh m\u1edbi c\u00f3 k\u00edch th\u01b0\u1edbc nh\u1ecf h\u01a1n g\u1ecdng c\u0169<\/strong><\/p>\n

H\u00e3y th\u1eed t\u01b0\u1edfng t\u01b0\u1ee3ng tr\u00f2ng k\u00ednh c\u1ee7a b\u1ea1n gi\u1ed1ng nh\u01b0 m\u1ed9t t\u1ea5m g\u1ed7, v\u00e0 b\u1ea1n ch\u1ec9 c\u00f3 th\u1ec3 m\u00e0i ch\u00fang nh\u1ecf \u0111i ch\u1ee9 kh\u00f4ng th\u1ec3 \u0111\u1eafp th\u00eam v\u1eadt li\u1ec7u \u0111\u1ec3 t\u0103ng k\u00edch th\u01b0\u1edbc. V\u00ec v\u1eady, n\u1ebfu mu\u1ed1n gi\u1eef l\u1ea1i tr\u00f2ng, b\u1ea1n b\u1eaft bu\u1ed9c ph\u1ea3i ch\u1ecdn m\u1ed9t chi\u1ebfc g\u1ecdng k\u00ednh m\u1edbi c\u00f3 thi\u1ebft k\u1ebf nh\u1ecf h\u01a1n \u1edf m\u1ecdi chi\u1ec1u so v\u1edbi g\u1ecdng c\u0169 (l\u00fd t\u01b0\u1edfng l\u00e0 nh\u1ecf h\u01a1n \u00edt nh\u1ea5t 2mm m\u1ed7i chi\u1ec1u).<\/p>\n

B\u1ea1n \u0111ang d\u00f9ng k\u00ednh \u0111\u01a1n tr\u00f2ng v\u1edbi s\u1ed1 \u0111\u1ed9 th\u1ea5p<\/strong><\/p>\n

V\u1edbi lo\u1ea1i tr\u00f2ng n\u00e0y, y\u00eau c\u1ea7u quan tr\u1ecdng nh\u1ea5t l\u00e0 c\u0103n ch\u1ec9nh sao cho t\u00e2m quang h\u1ecdc c\u1ee7a tr\u00f2ng k\u00ednh kh\u1edbp \u0111\u00fang v\u1edbi\u00a0kho\u1ea3ng c\u00e1ch \u0111\u1ed3ng t\u1eed<\/a>\u00a0c\u1ee7a b\u1ea1n tr\u00ean g\u1ecdng m\u1edbi. \u0110\u1eb7c bi\u1ec7t, n\u1ebfu \u0111\u1ed9 kh\u00fac x\u1ea1 c\u1ee7a b\u1ea1n t\u01b0\u01a1ng \u0111\u1ed1i th\u1ea5p (v\u00ed d\u1ee5: \u00b12.00D), dung sai quang h\u1ecdc s\u1ebd r\u1ed9ng h\u01a1n, gi\u00fap gi\u1ea3m thi\u1ec3u r\u1ee7i ro sai l\u1ec7ch.<\/p>\n

2. D\u1ea5u hi\u1ec7u cho th\u1ea5y b\u1ea1n c\u1ea7n thay tr\u00f2ng k\u00ednh m\u1edbi<\/strong><\/h3>\n

Tr\u00f2ng k\u00ednh c\u0169 \u0111\u00e3 xu\u1ed1ng c\u1ea5p, x\u01b0\u1edbc ho\u1eb7c h\u1ecfng l\u1edbp ph\u1ee7<\/strong><\/p>\n

Trong qu\u00e1 tr\u00ecnh th\u00e1o l\u1eafp v\u00e0 m\u00e0i l\u1ea1i, tr\u00f2ng k\u00ednh s\u1ebd b\u1ecb \u0111\u01b0a v\u00e0o m\u00e1y, ch\u1ecbu \u00e1p l\u1ef1c c\u01a1 h\u1ecdc v\u00e0 nhi\u1ec7t \u0111\u1ed9 r\u1ea5t cao. Do \u0111\u00f3, kh\u00f4ng th\u1ec3 t\u00e1i l\u1eafp nh\u1eefng tr\u00f2ng k\u00ednh \u0111\u00e3 b\u1ecb tr\u1ea7y x\u01b0\u1edbc n\u1eb7ng, bong tr\u00f3c l\u1edbp ph\u1ee7 ch\u1ed1ng ch\u00f3i (AR) ho\u1eb7c c\u00f3 d\u1ea5u hi\u1ec7u n\u1ee9t m\u1ea1ng nh\u1ec7n (crazing). \u00c1p l\u1ef1c \u00e9p t\u1eeb m\u00e1y m\u00e0i s\u1ebd khi\u1ebfn c\u00e1c\u00a0l\u1edbp ph\u1ee7<\/a>\u00a0y\u1ebfu \u1edbt n\u00e0y v\u1ee1 v\u1ee5n ho\u1eb7c b\u1ecb h\u1ecfng ho\u00e0n to\u00e0n.<\/p>\n

\n
\"Hi\u1ec7n
B\u1ea1n c\u1ea7n thay th\u1ebf tr\u00f2ng k\u00ednh m\u1edbi n\u1ebfu tr\u00f2ng c\u0169 xu\u1ea5t hi\u1ec7n hi\u1ec7n t\u01b0\u1ee3ng n\u1ee9t m\u1ea1ng nh\u1ec7n (crazing)<\/em><\/figcaption><\/figure>\n<\/div>\n

Sai l\u1ec7ch t\u00e2m quang h\u1ecdc<\/strong><\/p>\n

N\u1ebfu g\u1ecdng m\u1edbi c\u00f3 kho\u1ea3ng c\u00e1ch m\u0169i hay thi\u1ebft k\u1ebf khi\u1ebfn t\u00e2m quang h\u1ecdc b\u1ecb l\u1ec7ch \u0111i, tr\u00f2ng k\u00ednh s\u1ebd v\u00f4 t\u00ecnh ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t \u201cth\u1ea5u k\u00ednh l\u0103ng k\u00ednh\u201d. S\u1ef1 sai l\u1ec7ch do hi\u1ec7n t\u01b0\u1ee3ng l\u1ec7ch t\u00e2m n\u00e0y, \u0111\u1eb7c bi\u1ec7t l\u00e0 l\u1ec7ch d\u1ecdc, c\u00f3 th\u1ec3 khi\u1ebfn m\u1eaft b\u1ea1n \u0111i\u1ec1u ti\u1ebft qu\u00e1 m\u1ee9c, g\u00e2y ra m\u1ecfi m\u1eaft, \u0111au \u0111\u1ea7u, ch\u00f3ng m\u1eb7t ho\u1eb7c th\u1eadm ch\u00ed l\u00e0 nh\u00ecn \u0111\u00f4i.<\/p>\n

B\u1ea1n \u0111ang s\u1eed d\u1ee5ng k\u00ednh \u0111a tr\u00f2ng<\/strong><\/p>\n

K\u00ednh \u0111a tr\u00f2ng l\u00e0 s\u1ea3n ph\u1ea9m quang h\u1ecdc ph\u1ee9c t\u1ea1p, t\u1ed1i \u01b0u cho nhi\u1ec1u v\u00f9ng nh\u00ecn kh\u00e1c nhau (xa, g\u1ea7n, trung gian). Nh\u1eefng v\u00f9ng n\u00e0y g\u1ea7n nh\u01b0 thay \u0111\u1ed5i li\u00ean t\u1ee5c tr\u00ean b\u1ec1 m\u1eb7t tr\u00f2ng. Khi m\u00e0i l\u1ea1i v\u00e0o g\u1ecdng k\u00ednh m\u1edbi, c\u00e1c v\u00f9ng nh\u00ecn n\u00e0y (\u0111\u1eb7c bi\u1ec7t l\u00e0 v\u00f9ng \u0111\u1ecdc s\u00e1ch \u1edf d\u01b0\u1edbi c\u00f9ng) r\u1ea5t d\u1ec5 b\u1ecb c\u1eaft m\u1ea5t ho\u1eb7c l\u00e0m sai l\u1ec7ch, g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng chao \u0111\u1ea3o h\u00ecnh \u1ea3nh.<\/p>\n

Theo b\u00e1o c\u00e1o t\u1eeb th\u01b0\u01a1ng hi\u1ec7u Zeiss, ch\u1ec9 c\u00f3 r\u1ea5t \u00edt tr\u01b0\u1eddng h\u1ee3p c\u00f3 th\u1ec3 t\u00e1i l\u1eafp tr\u00f2ng k\u00ednh \u0111a tr\u00f2ng th\u00e0nh c\u00f4ng.<\/p>\n

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

Thay g\u1ecdng k\u00ednh gi\u1eef tr\u00f2ng c\u00f3 \u0111\u01b0\u1ee3c kh\u00f4ng? B\u1ea1n ho\u00e0n to\u00e0n c\u00f3 th\u1ec3 thay g\u1ecdng k\u00ednh m\u1edbi v\u00e0 gi\u1eef l\u1ea1i tr\u00f2ng k\u00ednh c\u0169, nh\u01b0ng \u0111i\u1ec1u n\u00e0y ph\u1ee5 thu\u1ed9c r\u1ea5t nhi\u1ec1u v\u00e0o y\u1ebfu t\u1ed1 k\u1ef9 thu\u1eadt. V\u1edbi 3 n\u0103m kinh nghi\u1ec7m t\u1ea1i K\u00ednh H\u1ea3i Tri\u1ec1u, t\u00f4i s\u1ebd cung c\u1ea5p cho b\u1ea1n th\u00f4ng tin chi ti\u1ebft v\u1ec1 […]\n","protected":false},"author":1,"featured_media":44,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[21],"tags":[],"class_list":["post-43","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"_links":{"self":[{"href":"https:\/\/kinhmathoanggia.com\/index.php\/wp-json\/wp\/v2\/posts\/43","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kinhmathoanggia.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kinhmathoanggia.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kinhmathoanggia.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/kinhmathoanggia.com\/index.php\/wp-json\/wp\/v2\/comments?post=43"}],"version-history":[{"count":1,"href":"https:\/\/kinhmathoanggia.com\/index.php\/wp-json\/wp\/v2\/posts\/43\/revisions"}],"predecessor-version":[{"id":45,"href":"https:\/\/kinhmathoanggia.com\/index.php\/wp-json\/wp\/v2\/posts\/43\/revisions\/45"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/kinhmathoanggia.com\/index.php\/wp-json\/wp\/v2\/media\/44"}],"wp:attachment":[{"href":"https:\/\/kinhmathoanggia.com\/index.php\/wp-json\/wp\/v2\/media?parent=43"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kinhmathoanggia.com\/index.php\/wp-json\/wp\/v2\/categories?post=43"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kinhmathoanggia.com\/index.php\/wp-json\/wp\/v2\/tags?post=43"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}