|Overall Size:|| 4 in. x 4. in. |
(101.6mm x 101.6mm)
Conforms to NIST/NBS 1010A and ANSI/ISO test chart #2; frequency shown in cycles per mm and changes by an average of 12.2% per step; image overall 38mm x 45mm.
Read direct resolution; ideal for evaluation of Optical / Mechanical Systems where reduction and low resolution is of interest.