muralist opened this issue on Nov 07, 2009 · 3 posts
muralist posted Sat, 07 November 2009 at 2:04 PM
I want to assemble a vertical cross by rendering 6 square images of my environment. What camera setting in mm do I use to get a 90 degree field of view for each image?
(bagginsbill's probe setup is too large for the space Im shooting)
medzin posted Sat, 07 November 2009 at 8:34 PM
I forgetting formula now, but nomograph I keep for FOV says 18mm is 90 degree.
Keith posted Mon, 09 November 2009 at 2:29 PM
For a rectilinear lens (that is, one that minimizes fisheye-style distortion), the formula is:
FOV = 2 arctan (x / (2 f)), where x is the diagonal length of the film.
There's a converter here .