How to Find the Best ISO for Astrophotography: Dynamic Range and Noise

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ISO is one of the three major exposure settings in the exposure triangle of a digital camera. Of the three: shutter time, f/number, and ISO, it is ISO that is probably most misunderstood. Even more so than f/number. In fact, it is a common misconception that higher ISO settings will cause images to be noisier. In fact, the opposite is often true. Wait, what?

That’s right, higher ISO settings alone do not increase image noise and higher ISOs can even be beneficial to low-light photography. In this post, I talk about the craziness surrounding ISO settings, how ISO actually affects exposure and how to find the optimal ISO setting on your camera for astrophotography.

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Photographing the Milky Way with a Point and Shoot: A Five Camera Low Light Battle

Point-And-Shoot-Low-Light-Battle-Title Can you photograph the Milky Way with a point and shoot? We put five of the best point and shoot cameras against each other to see what’s possible and find out which one is the best. Read more to find out.

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