CFZ - don’t suppose you are working on some way of putting the central focus area towards the back of the cfz so those who either don’t have flatteners or whose flatteners don’t quite work have more of their image in the cfz? Or is that a daft thing?
How are you working out the cfz? I’ve seen different ideas for working this out which for my setup seem to range from over 150 microns down to 20.
Regards
Nigel
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