Which "white" light to use?

oldfield

http://osastrolog.blogspot.com/2 ... t-images-taken.html

This is a study on which color filter renders better result for white light solar imaging, it seems like green is the best, and blue is close second.  And if seeing condition is poor, blue might edge out.

[ 本帖最後由 oldfield 於 2009-7-8 17:34 編輯 ]

oldfield

the images.

oldfield

follow up experiment today:

http://osastrolog.blogspot.com/2 ... xperiment-cont.html

astroQM

Great report.

Perhaps there is a reason why the solar continuum filter is green.

KST

其實，普通 green color filter 同 solar continuum filter 有幾大分別

oldfield

原帖由 KST 於 2009-7-11 17:16 發表
其實，普通 green color filter 同 solar continuum filter 有幾大分別

聽聞 green filter 做倒絕大部份效果, 不過我無試過

mca

以前用黑白菲林影相，記得 green filter 可以加強皮膚效果，特出綠葉和臉上的 ”墨屎”，或用 green filter + monochrome CCD 影太陽黑子有同樣效果 ?

有趣的網頁
http://www.gdargaud.net/Photo/BlackWhite.html#Digital

http://www.fineart-photography.com/bwfilter.html