20
21 Line pair per centimeter high resolution gauge
The 21 line pair/cm gauge has resolution tests for visual evaluation of high resolution
ranging from 1 through 21 line pair/cm. The gauge accuracy is ± 0.5 line pair at the 21
line pair test and even better at lower line pair tests.
The gauge is cut from 2mm thick aluminum sheets and cast into epoxy. Depending on the
choice of slice thickness, the contrast levels will vary due to volume averaging.
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