Finding the Optimum Camera ISO / Gain for Astrophotography

Been wondering what's the best ISO / Gain setting to use on your camera for Astrophotography. You're not alone. After years of wondering, I found a great website that helped enormously. In this tutorial I first explain the basics of Signal to Noise Ratio and Dynamic Range, both of which are crucial to understanding how to choose the best ISO / Gain setting. Then I show you how to do a simple test using your camera to find out what the best setting to use is (since every camera is different!)

Here are the important Web Links that are mentioned in the video :

For DSLR users there is test data for a wide range of cameras at ...
https://www.photonstophotos.net/

Excellent web article on ISO...
https://petapixel.com/2017/03/22/find-best-iso-astrophotography-dynamic-range-noise/#:~:text=Higher%20ISOs%20Don't%20Increase%20Noise&text=All%20other%20things%20being%20equal,actually%20decrease%20the%20visible%20noise

Видео Finding the Optimum Camera ISO / Gain for Astrophotography канала Martin’s Astrophotography