![]() Comparison between stacking all 85 RAW images in my sequence with stacking only the best 15%. This means that it is always best to stack fewer images of better quality than stack a lot of images with mediocre image quality. ![]() So, yes: you should always shoot for image stacking and then decide what to do with the data you have collected.īefore going on though, let me remind you of an old, universal saying that is very pertinent to image stacking: garbage in, garbage out. How much the Moon fills the frame at different focal lengths with a full-frame camera. The aligned images are then combined into a single photo, for example, by averaging for each pixel their pixel-values across the sequence.īut for DSO, the image alignment is done using stars, while for the Sun, the Moon and the planets, the image alignment is done using either global features or aligning points (either user-defined or generated automatically).īecause of these crucial differences, only a few astrophotography software (Pixinsight, for example) can stack deep sky and lunar/planetary images: most of the time, you have to use different software for the different types of targets.īut don’t worry: image stacking is a highly automated process that will take you only a few clicks to get it done.Īnd shooting for image stacking, at least for the Moon and the planets, does not require extra gear: you can shoot the moon from a fixed tripod with a 600 mm lens and still be able to stack from a few tens of images to a hundred or so before the Moon will start moving out the frame.The selected number of images (say the best 20%) are aligned to the image of reference (usually the one with the best quality). ![]()
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