Datacolor has announced the SpyderLensCal focus calibrator. The device allows photographers to measure the AF performance of their camera/lens combinations. On DSLRs with a micro-adjustment feature, this tool can be used to help determine the best values to set in the camera's custom settings menu to correct front or back focus. SpyderLensCal will be available from September 6, 2010 at a suggested retail price of $59.
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