Autofocus Scale Invariant

This test chart is useful to measure auto focus consistency of a Digital Still Camera. The test chart covers all available camera devices and types of focuses to test. The slanted edges are formed by dark and light gray triangles to find the Spatial Frequency Response (SFR) from a series of images captured at several distances.

This test chart has 4:1 contrast ratio and is available on LVT film in size 8″ (7.75″) x 10″ (9.25″).