DA010

USAF 1951 Resolution Wheel Pattern 1"X1" POS

" checking of resolution across field of view. 1”X1” with a USAF 1951 Resolving Power Target reproduced 9 (nine) times. Each image includes Group 2, Element 1 (4 lp/mm) through Group 7, Element 6 (228 lp/mm).
Opaque pattern on a clear field. (Positive)

On stable glass substrate etched in reflective chrome. Pattern on top surface. (Right reading looking at.)

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