Quote:
Originally Posted by Peter Ward
Hey Stefan. It's because the (camera) focal plane (from the) converging light cone falls short by the stated amount with a plano element in front of a sensor.
The thicker the filter, the more the converging cone is refracted.
Yes, the refractive index of the filter also makes a difference, but likely an order of magnitude smaller.
Hope that sheds some light  |
Sorry I expressed myself very poorly
....yes you are totally correct...I was talking about the camera's position...anyway.. Problem solved!