Thread: Quickie M42
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Old 01-10-2014, 01:08 PM
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cometcatcher (Kevin)
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cometcatcher is offline
 
Join Date: Jan 2005
Location: Cloudy Mackay
Posts: 6,542
Be cool to see a comparison Cam. I've been eyeing this filter for some time but it's not a cheap one.

As for gradients, I have them also. Many of mine appear to be on the CMOS sensor itself. It has a green / magenta cast to it right through the middle of the frame. Flats, darks and bias do nothing to remove them. I have to software flat field every image I take.
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