Hi,

I write a code with a camera to simulate a specific camera/objectiv combination.
If I use the angle with the value of the angle of view value of the objectiv the
simulated image looks the same as the real view throuw the objective. But if I
use the direction vector with the focal length ob the objective it absolutely
does not.

Isn't it that the length of the direction vector is the same as the focal length
of the objective?

Greatings,
   Tim

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