Quote:
Originally Posted by rcheshire
Jon. The reason for not addressing calibration of Pat's frames in this instance, is that the striations in the image can occur with or without calibration. Hopefully, there will be improvement with calibration.
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Understood. I guess there are two questions we are replying to here:
1) how can we avoid striations in the future? For which the answer is dithering, and matching temperatures.
2) What can Pat do to improve the outcome of his data (which is *excellent data, great focus, guiding and detail IMHO).
My answer to this second question is - take some darks. Maybe even try and get some flats with the camera as close as possible to how it was positioned in the original.
Finally, I'm going to guess that the really high sensor temperatures happened at the beginning of his imaging run. Pat, it might be worth going back and checking whether the striations can be seen in all your subs, or just those at the start.