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Astrophotography- Image Scale or Pixel Scale
Can anyone advise the correct terminology for determining your arc sec per pixel value for astrophotography when checking your telescope / camera angular resolution
Formula
P= ( pixel size in microns x 206.3 )/ focal length in mm
Lots of sites use “Image Scale” and others use “Pixel Scale”
Which one is technically correct ??
A bit confusing for beginner and intermediate astrophotographers me included
Thanks in advance
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