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Old 10-11-2014, 04:15 PM
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Peter Ward
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Peter Ward is offline
Join Date: Dec 2007
Location: The Shire
Posts: 6,730
Originally Posted by ZeroID View Post
WIce\Dew is now the problem !!
How the heck do you manage that ?
How do the professional Astro cameras manage it ?
Just like a cold can of XXXX on a warm summer's day, too high a delta-T will always cause condensation (and eventually icing).

Pro cameras, such as SBIG, have sealed chambers with desiccating plugs, plus the chamber window is heated.

Further, the CCD chamber temperature is stabilised to 1/100th of a degree to allow accurate dark frame calibration.

Sure, lowering the camera temperature helps....but there are limits on unsealed systems.
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