Re: New 3D lens announced


I was thinking that the keystone correcting software was working similar to the perspective control software used to correct the extreme perspective in photographs taken with wide angle lenses with inclined angles with respect to the to the surface of the object.

The phenomenon is exactly the same: a projection on a plan that is not parallel to the subject [successive depth planes in case of stereo].
The ideal lens is also the same: a shift lens to keep the sensor parallel while getting rays coming from an angled direction.
In modeling software, such shift lens is used for the stereo cameras, because it is cheap to build in software contrary to the real world one and allows to set the base and window independently without requiring post-treatment.


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