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Originally Posted by tornado33
I mentioned at Lostock that I deliberately move the scope slightly between each exposure (by moving the guidestar pick off prism in the off axis guider slightly). This means that when I stack the images, each one is moved slightly, this sees that the same actual pixels arent stacked on top of each other, as I think some of the noise ocurrs in the same pixels each time. Moving them smears out this noise,(at least it seems to work here),Scott
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Interesting Scott, that's also the same principal we use in planetary imaging when stacking avi's. This movement weeds out the noise and increases detail.