It would take an angle of view of at least 84 degrees, which is the AOV of a
24mm lens.
Chip Stratton
cstrat@xxxxxxxxx
> Nice shot, interesting subject.
>
> You used a 28mm and it doesn't look like the full arc would fit
> in the frame. My college physics books are long buried. What is
> the angle of view required to fit the full rainbow in the frame?
>
> Seems like I've tried with a 24mm and not succeeded; the 16mm
> with a 180 (diagonal field of view) obviously should work; does
> the 18mm or 21?
>>
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