Datacolor SpyderLensCal Autofocus Calibration Aid Hahnel back and sides in resonant

back and sides in resonant transparent flat finish

This well-read iPad case grips the contours of your tablet to shield its vulnerable areas

3" high and 1

front to back

Magnets hold the tips out of the way when folded back

Datacolor SpyderLensCal Autofocus Calibration Aid Hahnel back and sides in resonantThe SpyderLensCal Autofocus Calibration Aid from Datacolor is a focus test chart, designed for use with select DSLRs that support autofocus adjustment. The chart allows you to test the autofocus accuracy of your camera, making it easy to fine tune it for optimum performance. The SpyderLensCal features a built in level and tripod mount, allowing you to create precise testing environments. Cameras that support autofocus adjustments such as the Canon 5D