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Old 04-09-2018, 08:20 PM
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John Hothersall
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John Hothersall is offline
 
Join Date: Apr 2007
Location: Thornlands, Brisbane.
Posts: 1,346
Quote:
Originally Posted by Prickly View Post
Super good images. The detail in Saturn nebula is incredible.

The ASI 290 looks to be a great camera-Is your camera cooled?

Great effort for tricky objects and the stars look great.

Cheers
David
Hello David, I did consider the cooled version but the best images came from uncooled ASI290 quite often, so I got the uncooled monochrome which requires no darks, I stack the ser file using Registax.

In summer the ASI temp is 29 degrees with few faint warm pixels and in winter at 15 degrees no warm pixels with exposures no longer than 3secs. I considered a DIY peltier to cool by 20 degrees further but it is not needed.

Exposures greater than 10sec would benefit in summer from cooling.

ASI is a great all round introductory camera, although it is only 12 bit. It is designed for planets but I am experimenting with bright deep space objects.

Regards, John
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