Pixel Scale / Sampling Advisor
Check whether your pixel scale undersamples, matches, or oversamples typical seeing so you can tune focal length and camera pairing.
Frequently asked questions
What is good sampling?
A common rule is about 2–3 pixels across the seeing FWHM. Fewer pixels undersample; many more oversample and waste signal.
Does Guyana seeing stay poor?
Coastal seeing is often 2–3″. Do not chase tiny pixels unless you image from a calmer inland site.
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