Thanks Girit,
Yes I am interested, I am waiting for a sale of one of my astronomy items (celestron wedge if you believe it) before I can able to have the funds. Sounds like some great cooling capacity. With my light pollution, currently I'm limited to about 10min exposure otherwise the sub is a washout (even with a LPR filter). The weather has been not inviting lately, hopefully this week they may be patches of some semi clear skies.
Laurence.
Quote:
Originally Posted by Giritboy
Hi Laurence,
I am sorry I missed your message, the noise is not too bad at constant -15. The camera cools to -30 below ambient temperature. Depending on your location and season you might be able to push lower like -20. I won’t recommend anything lower then -20, might damage the sensor or frost it. I will need to find some subs I captured at 20 minutes. If I can’t find any, I will try to capture a osc of some random target if the weather and seeing is good. Besides the lagoon I captured was with 80% or 70% moon glow therefore losing a lot of details in the outer rims. Equipment was 110ed refractor with a focal reducer/ flattener
Hope this helps and do reply me if you are still interested so I can bring the ccd out for my next imaging session.
Regards,
Girit
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