Quote:
Originally Posted by Merlin66
Michael,
Charles has provided a very good explanation of what is happening.
If you need to maintain an absolute spacing , then nominally 1mm has to be removed from other spacers between the corrector and the image plane.
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I think you mean add 1mm to the spacing Ken? The filter screws inside the existing flattened housing.
With my esprit 80 adding an IDAS LPS filter doesn't seem to make any difference.