|Overall Size:|| 4.0 in. x 4.0 in. |
(101.4mm x 101.4mm)
|Pattern:|| 45 equal bar and space|
widths (8° per cycle
or 4° per spoke)
Wedge shaped segments with 45 equal bar and space widths (8 degrees per cycle or 4 degrees per spoke) over a 360 degree circumference circle. Overall image size 50mm diameter.
An ideal target for detecting Optical Astigmatism, Focus Errors and other aberrations. Can easily be incorporated into complete target arrays.