Quote:
Originally Posted by Decimus
Thanks for the comment, Greg. I never thought about ice being the cause, let alone dew. It's the grid patterning that has puzzled me. The ASI071MC Pro has a built-in dew heater which defaults to 'on'. When I checked in Sky X Pro under camera settings, it was on (though the 'on' setting, counter-intuitively, is 0, not 1).
Some night soon, I might get to do some astrophotography, but not from my backyard which looks south and has no other quadrant of the sky).
Cheers,
Richard
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I am hardly an expert on ZWO cameras but I did read on Cloudynights that ASI cameras dew control is not that great compared to QHY. Frost can take on different looks. I have seen some that look like fibres on the sensor, wormy.
Perhaps your dew heater is reducing some of the frost but not all of it leaving the pattern.
Greg.