Quote:
Originally Posted by AXE
Didn't know that about the flats, i'll try it next time I get out. I've been doing <1 sec exposures.
There is a big round glow that takes up about 1/3 of the image in the bottom right corner. It's not an issue when I only do minor stretching but it quickly gets out of hand when I try to bring out detail.
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If you are doing less that one second exposures I don't think you are getting above the noise floor and gathering enough signal. Your sub lengths should be at least 30" to 2 minute. This will give a reasonable signal length for this type of sensor.
The big round glow could well be a light leak somewhere. Or amp glow perhaps, though I don't know that sensor. Perhaps could you post an image of one of the affected frames?