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What is the best way to reduce noise in long exposures with SharpCap?

Posted: Tue Sep 23, 2025 4:13 am
by rosebl
Hi everyone, I’ve been experimenting with long-exposure astrophotography in SharpCap, but I still struggle with noise even after using dark frames. Do you have any tips or best practices (settings, workflow, or hardware adjustments) to get cleaner results?

Re: What is the best way to reduce noise in long exposures with SharpCap?

Posted: Tue Sep 23, 2025 5:17 am
by Menno555
Hello and welcome

Noise will almost always be a part of capturing and is dealt with during processing.
With my setup I have the least amount of noise with lower Gain values. Often my Gain is set to 0 (zero) during long exposures.

Menno