100x m-planAPO APO push-down limit

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Beatsy
Posts: 2105
Joined: Fri Jul 05, 2013 3:10 am
Location: Malvern, UK

100x m-planAPO APO push-down limit

Post by Beatsy »

How far can the mag of the 100x mitty be pushed down and still cover aps-c? Mushy corners are ok, but it needs to be as sharp as the N.A. allows in a square covering the centre from top to bottom.

Asking for a friend :-D

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