Quote: Originally posted by rawan on April-05-2011
What is mean NPP, could you explain this
First you must understand this:
The NPP (No Parallax Point) or No Parallax Position is the EP (Entrance Pupil) of the lens. When correctly aligned objects remain in the same position (both near object and far objects) when the camera/lens is rotated on its X/Y axis.
It has also been incorrectly called the "Nodal Point" but really it has nothing to do with the Nodal Points of a lens.
Then you must find it: