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Old 08-11-2014, 12:52 PM
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Rod771 (Rod)
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Rod771 is offline
Join Date: Aug 2012
Location: Parklea NSW
Posts: 1,207
Originally Posted by mithrandir View Post
Rod, the mate doesn't use darks. He is an experienced astrophotographer and reckons the a7s doesn't need them at 6400.
Never questioned "No darks" Although, the image could probably benefit from their inclusion. "No Flats" however, I wouldn't think that is correct for a full frame sensor on a hyperstar lens. The hyperstar is design for chip diagonal <27mm If you go any larger then severe vignetting is produced by the lens. Having said that, larger sensors can and have been used (See here Image using Hyperstar/Atik11000) but only corrected with excellent flats.

I will also back flip and say that Fritz didn't use flats as it looks like he has cropped his imaged, a lot.

Last edited by Rod771; 09-11-2014 at 09:13 PM.
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