Hi there, thanks for the comments !

Hi Michael,

Well actually using the focal length alone is worse than the previous script :

With the example here : render size : 1200 * 480 ... and an modo angle of view of 39.5978 (= a focal lenght of 50mm), the previous script return 16.39 for MoI FOV ... this is really close to the perfect match.

Using the new scipt with the focal lenght only (50mm) : I get 26.99 ... a huge difference (so the angle is way to wide)

I'm sorry I can't help that much with that trigono stuff, but again, the previous script is giving a really good average result, I can deal with.

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