After reading this article "This lens is soft" and other myths I decided that I am doing myself a huge disservice by not "calibrating" each of my lenses to my body using the AF Microadjustment tool provided in my 50D.


What is the best/easiest way to do this? I am assuming I need to take some exposures using a tripod and cable release at varied Microadjustment settings but would be a good target to shoot? I wish I had a ISO 12233 Chart to do so but what can I use that's just lying around my house? A page from a magazine? When I evaluate each exposure should I do it at 100%? Should I shoot wide open?