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First unread post | | 12 posts | | Page 1 of 1 |
 Comet Lovejoy Another view of Comet Lovejoy, this time a 12 image stack, with dark and bias frame subtraction, plus flat fielding using deep sky stacker. I found PS auto align couldn't handle field rotation due to the fixed lens, the field effectively rotates around a point about 1 field width to the right of the top RH corner of the image. Image then imported to PS for further processing. Canon 1DMkIIn + 50mm f1.8; 8 exp 25s @ f2.8; 4 exp 15s @ f2 ISO800. All comments welcome. |
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by Mark Boranyak
on Tue Dec 27, 2011 9:05 am
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by Paul Klenck
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by Paul Skoczylas
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