Imaging recource: How to find the optimal ISO for astrophotography: Understanding ISO, noise and dynamic range

    As part of their free “Astrophotography 101” series focused on photographing the Milky Way, Lonely Speck has written an incredibly in-depth article about finding the best ISO for astrophotography. Finding the best exposure settings – shutter speed, aperture and ISO – for astrophotography can be tricky, especially for beginners. Lonely Speck has a useful tool to help called the Milky Way Exposure Calculator, but this is recommended only as a starting point and you need to know more about how your digital camera operates to...
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