Mauna Kea (Hawaii) Astrophotography advice?

Started Sep 27, 2017 | Discussions thread
Esmond_B Regular Member • Posts: 141
Re: Wow... fantastic

Downside is the delay between shots. Take an identical exposure with the lens cap on at the end of your shooting sequence and use it to subtract sensor noise - at least as accurate without doubling the length of each exposure.

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