![]() ![]() In effect, stacking results in star trails at the edges of the final image -see attached. ![]() ![]() However, lenses can incorporate a varying degree of optical distortion (barrel/pin-cushion), particularly wide (and superwide) angle lenses, stretching dimensions at the edges of the frames. When one takes several (20?) identical frames of part of The Milky Way (for improving signal to noise ratio in" stacking"), one is actually capturing moving stars (not to be confused with stitching several adjacent and overlapping frames in a panorama)Īlignment in New Astrophotography Stacking workflow (shift/rotate to a base frame) supposedly removes this apparent movement. ![]()
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