Hi,
Just got a new ZWO ASI 1600MM Cooled Pro. I have take flats which has a strange pattern. They are captured using a Gerd Naumann flat panel. My telescope is a Boren Simon 200mm f/3.6. Attached is a a ZWO filterwheel with Astrodon filters, 1.25". The flats are captured for L Serie 2 filter, lengt of exposures is 0.6 giving an average of 25000 ADU. The flats, 20 are calibrated by use of dark-flats, 20 at same gain, 76-12, and exposure time as flats. Processed in Pixinsight.
I have done a test with a T-SHirt and a LCD lamp that gave flats at 20000 ADU on 2.1 seconds. They gave the same pattern with the light panel.
I can see the same pattern but not so dominat on the HA flats captured for Gain 300-50.
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What is wrong?
For me it is obvious that it is something with camera, same is this post
I can not use the camera as it is, a replacement seems for me to be the solution.
Erik G
