For a given system, with field type defined as “Real Image height”, the relative illumination at say Y=2mm is say 0.95
For the same system, with field type defined as “Paraxial Image Height”, the relative illumination at still Y=2mm is now 0.92.
Since the Y coordinates of the relative illumination curve are given in mm in the image plane, I would expect the relative illumanition value at a given height is independant of the field type selected.
What am I missing ?
Hi Mocquin,
You are comparing RI at two different positions:
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