Quote:
Originally Posted by mental4astro
The AFOV in the 65mm is larger than with the GSO, but the limiting factor with these EPs is the barrel, this is called vignetting. At 2", the FOV potential of these EPs is crippled. The AFOV is wider, it is the exact same size for each EP, but the FOV does get smaller going up in FL. This also manifests with the last 5 to 10% of the FOV loose light intensity very quickly, resulting in a soft field stop, not a sharp, crisp finish.
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This is all clear as mud
- you seem to confuse apparent field sometimes with true field. Why not just list the true field in degrees with each eyepiece and /or the field stop diameter and also list the Apparent Field of View for each one in degrees and everyone will work out what you are trying to say .