How to calibrate a lens. Take one photo ideally with. Get a calibrator there are many on the market but we recommend the 25 focus pyramid set your camera on a tripod a tripod or other flat surface is essential. Heres a quick summary on how to calibrate your lenses.
I assume many of you are like me and feel that accurate sharp focus is one of the most important things in an image. In the case of the canon lens that karls testing here it was front focusing quite a bit. In ap mode set your aperture all the way open and focus on the little device in the middle of the right hand side of.
Additonal tips to successfully calibrate your lens take your test photos in good light. Im a pixel peeper and want to see my children or subject incredibly sharp. But a quick trip into the menus for a custom calibration helped to set it just right.
Use light from a window or go out on your porch in the shade.