{"id":3691,"date":"2009-01-25T22:45:44","date_gmt":"2009-01-25T13:45:44","guid":{"rendered":"http:\/\/rockhand.pvsa.mmrs.jp\/blog\/?p=3691"},"modified":"2009-01-25T22:45:44","modified_gmt":"2009-01-25T13:45:44","slug":"qhy9%e3%81%aegain%e3%81%a8offset%e3%81%af%e3%81%a9%e3%81%86%e8%a8%ad%e5%ae%9a%e3%81%99%e3%82%8b%e3%81%8b%ef%bc%9f-3","status":"publish","type":"post","link":"http:\/\/rockhand.pvsa.mmrs.jp\/blog\/?p=3691","title":{"rendered":"QHY9\u306eGain\u3068Offset\u306f\u3069\u3046\u8a2d\u5b9a\u3059\u308b\u304b\uff1f"},"content":{"rendered":"<p><a href=\".\/wp-content\/uploads\/cocona\/Gain-Offset.JPG\" target=\"_blank\"><img decoding=\"async\" src=\".\/wp-content\/uploads\/cocona\/Gain-Offset.JPG\" width=\"500\" height=\"312.5\" \/><br \/><\/a>QHY9\u306fGain\u3068Offset\u3092\u8a2d\u5b9a\u3067\u304d\u308b\u3002<br \/>\u666e\u901a\u306eCCD\u306b\u306f\u3042\u308b\u305d\u3046\u3060\u304c\u3001SBIG\u306b\u306f\u305d\u306e\u9805\u76ee\u306f\u306a\u304b\u3063\u305f\u306e\u3067\u3001\u610f\u5473\u304c\u826f\u304f\u308f\u304b\u3089\u306a\u304b\u3063\u305f\u3002<br \/>Gain\u306f\u5229\u5f97\u3067\u3042\u308a\u3001Offset\u306f\u5168\u4f53\u3092\u5e95\u4e0a\u3052\u3092\u3059\u308b\u3082\u306e\u3001\u306e\u3088\u3046\u3067\u3042\u308b\u3002<br \/>\u6c7a\u3081\u65b9\u3092\u30e1\u30fc\u30ab\u30fc\u306b\u554f\u3044\u5408\u308f\u305b\u305f\u3089\u4e0b\u8a18\u306e\u3088\u3046\u306a\u8fd4\u4e8b\u304c\u6765\u305f\u3002<br \/>The offset should be calibration by yourself.(Let the overscan area is a little avove zero)<br \/>For gain, if you capture the faint object you can use high gain. If the object is bright you can use low gain. For hyperstar, I think low gan is better, You can set it to 20.<br \/>\u3064\u307e\u308a\u3001\u81ea\u5206\u3067\u6c7a\u3081\u306a\u3044\u3068\u3044\u3051\u306a\u3044\u3002<br \/>Gain\u306f\u5bfe\u8c61\u304c\u6697\u3044\u3068\u4e0a\u3052\u3001\u660e\u308b\u3044\u3068\u4e0b\u3052\u308b\u3002Hyperstar\uff08F2\u524d\u5f8c\uff09\u306e\u3088\u3046\u306a\u660e\u308b\u3044\u30b7\u30b9\u30c6\u30e0\u3067\u306f20\u7a0b\u5ea6\u306b\u8a2d\u5b9a\u3067\u304d\u308b\u3002<br \/>Offset\u306f\u30aa\u30fc\u30d0\u30fc\u30b9\u30ad\u30e3\u30f3\u30a8\u30ea\u30a2\u3067\uff10\u304b\u3089\u5c11\u3057\u4e0a\u306b\u306a\u308b\u3088\u3046\u306b\u8a2d\u5b9a\u3059\u308b\u3002\u3089\u3057\u3044\u3002<br \/>\u305f\u3060\u3001Gain\u3000Offset\u306e\u5024\u3092\u3042\u307e\u308a\u5909\u3048\u308b\u3068\u3001Dark\u3084Flat\u306e\u6642Lite\u30d5\u30ec\u30fc\u30e0\u306e\u6642\u306eGain Offset\u3068\u540c\u3058\u5024\u3067\u306a\u3044\u3068\u3044\u3051\u306a\u3044\u3088\u3046\u306a\u306e\u3067\u3001\u305f\u304f\u3055\u3093\u306e\u30c7\u30fc\u30bf\u3092\u6301\u3063\u3066\u3044\u306a\u3044\u3068\u3044\u3051\u306a\u304f\u306a\u308b\u3002<br \/>\u21922-3\u7a2e\u985e\u307e\u3067\u304c\u7cbe\u4e00\u676f\u304b\u306a\u3042\u3002\u3002<br \/>\u4e00\u5fdcBias\u306e\u30c7\u30fc\u30bf\u3092\u3068\u308b\u3068\u3001\u50be\u5411\u304c\u308f\u304b\u3063\u3066\u304d\u305f\u3002<br \/>\u6697\u3044\u5bfe\u8c61\u306e\u5834\u5408\u306f\u3001Gain\u309255\uff05\uff0835\/63)\u3001Offset100<br \/>\u660e\u308b\u3044\u5bfe\u8c61\u306e\u5834\u5408\u306f\u3001Gain\u30920?32\uff05(0?20\/63)\u3001Offset105<br \/>\u3063\u3066\u3068\u3053\u308d\u3060\u308d\u3046\u304b\u3002\u3002\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>QHY9\u306fGain\u3068Offset\u3092\u8a2d\u5b9a\u3067\u304d\u308b\u3002\u666e\u901a\u306eCCD\u306b\u306f\u3042\u308b\u305d\u3046\u3060\u304c\u3001SBIG\u306b\u306f\u305d\u306e\u9805\u76ee\u306f\u306a\u304b\u3063\u305f\u306e\u3067\u3001\u610f\u5473\u304c\u826f\u304f\u308f\u304b\u3089\u306a\u304b\u3063\u305f\u3002Gain\u306f\u5229\u5f97\u3067\u3042\u308a\u3001Offset\u306f\u5168\u4f53\u3092\u5e95\u4e0a\u3052\u3092\u3059\u308b\u3082\u306e\u3001\u306e\u3088\u3046\u3067\u3042\u308b\u3002\u6c7a\u3081\u65b9\u3092 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"class_list":["post-3691","post","type-post","status-publish","format-standard","hentry","category-6"],"_links":{"self":[{"href":"http:\/\/rockhand.pvsa.mmrs.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/3691","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/rockhand.pvsa.mmrs.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/rockhand.pvsa.mmrs.jp\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/rockhand.pvsa.mmrs.jp\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/rockhand.pvsa.mmrs.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3691"}],"version-history":[{"count":0,"href":"http:\/\/rockhand.pvsa.mmrs.jp\/blog\/index.php?rest_route=\/wp\/v2\/posts\/3691\/revisions"}],"wp:attachment":[{"href":"http:\/\/rockhand.pvsa.mmrs.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3691"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/rockhand.pvsa.mmrs.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3691"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/rockhand.pvsa.mmrs.jp\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3691"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}