This is the product description text that will appear here.
Quantity
1
Description
USAF 1951 Resolution Wheel Pattern 1"X1" NEG
" 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...