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There's also a notable noise and dynamic range benefit to stacking: you reduce noise by a factor equal to the square root of the number of images stacked. ![]() That doesn't mean stacking more images won't help in other instances: the more you stack, the better your high-resolution shot (in this case: our 144MP image) will be. ![]() Smaller sensors particularly benefit from more stacked images, as they start off noisier While there is some advantage to stacking more images, returns are diminishing in this case. Interestingly, the difference between the 4 image and 20 image super resolution examples is less noticeable. ![]() This is observable throughout our sample scene. Areas where Dynamic Pixel Shift displays artifacts look clean in our 4-stack. Similarly, the difference between our 4 image stack and Dynamic Pixel Shift mode is also substantial. While you can sharpen a single Raw to get similar perceived sharpness, it comes at the cost of more noise, more moire, jagged slanted edges, and generally more false detail. Right off the bat, the difference between our four image stack and a standalone Raw file is like night and day. ![]() We down-sampled the files to the original resolution (36MP). Following a simple step-by-step Photoshop recipe (listed below), we created a super resolution file stacking four images – the same number used by Dynamic Pixel Shift – and one stacking 20 images, just for fun.
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