Are you frustrated with slightly out of focus images when you know your autofocus spot was dead on? It’s simply NOT your fault! From manufacture to manufacture and even lens copy to lens copy there are slight variances to the exact spot where light is being focused onto the sensor. Finally there’s a product that allows you to compensate for those variances and make sharper images immediately! Focus Pyramid - the autofocus lens calibration tool is an absolute must for every photographer. If you want to make the sharpest images possible, then you need to take control over your camera's focusing system. With the Focus Pyramid you can calibrate all of your lenses on your lunch break! The Focus Pyramid makes lens calibration quick and easy at an affordable price. So... Give your lenses a new lease on life and take your photography to the next level. ** Printed on the Highest Quality Ultra Thick Card Stock Material and Die-Cut for Quick & Easy Permanent Assemble, Calibrate Lenses in Minutes, Low Cost, Made In The USA!! **