New answers tagged magnification
In my case, because I do star imaging, we too use FOV instead of magnification. Basing on the formula 57.3 x sensor dimension / true focal length to derive the FOV, you'd get 57.3 x 13.2 / 146 = 5.2° which would make it narrower than that of the binos' 6.1°. However, if you must stick to magnification, in the old 35mm film days, 50mm was considered the ...
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