Siemens / Star Sector Target (T-50)

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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.