Thank you Mike for your point of view, which I find valuable and interesting.
About the 30x80 binocular I think you are right. The 2,7mm exit pupil makes this glass to be a daytime long distance, and astronomy binocular. At dawn and dusk the image will be quite dim. Therefore it will lose the usual point with a large binocular to provide a clear image under low light conditions. Also the TFOV will be narrow, and it will, as you call it, approach "telescope territory".
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Re: Why are higher mag binos not popular?
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