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

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rosebl
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Joined: Tue Sep 23, 2025 4:10 am

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

#1

Post 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?
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Menno555
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Re: What is the best way to reduce noise in long exposures with SharpCap?

#2

Post 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
Meade LX200 8" f/10 ACF OTA / Ioptron CEM25EC / Zwo ASI071MC Pro / Zwo ASI482MC
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