呢度有冇師兄係用CaptureOne?
LR貴到頂唔順轉戰咗
Fisheye lenses differ from normal (rectilinear) lenses in the mapping between the object angle Θ and the radius r on the image plane.
For rectilinear lenses, r = f tan Θ.
For typical fisheye lenses, there are several mappings, but the most common is r = f Θ.