Quote:
Originally Posted by Startrek
Philip,
An alternative to punching in numbers in an auto calculator and spitting out the answer
Here’s the formula to calculate Imaging FOV
Camera sensor size (mm) x 3460 / telescope focal length = FOV ( arc minutes )
Where camera sensor size ( height and width )
Cheers
Martin
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I get 3438 or more precisely 3437.747 if using more decimal places for a radian
57.3 x 60 = 3438 minutes of arc.
I always use degrees and multiply x 60 or 3600 if I want minutes or seconds of arc. 57.3 is good enough for me, many use 57.296.