We're going to find out today just how well it works though.Īll cameras produce a “white noise”, which is present at all times. This small motion, when averaged over dozens or hundreds of images, should smooth out and remove most sensor problems. Theoretically, Dithering can help with all of these problems! With dithering enabled, your camera will move slightly in a random direction between each exposure. You will mainly notice these problems if you don’t capture enough light during each exposure. All cameras have color mottle, which are splotchy areas of usually purple and green. Nikon cameras often have problems with a purple glow around the edges or bottom of the frame. Canon cameras tend to have very bad banding issues, along with color noise. Many sensors produce fixed pattern noise, which can include hot pixels, banding, color mottle, and purple glow. Dithering is a special process that should allow you to fix some annoying problems in your astro images.
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