I have a Canon 7D with a 50mm f/1.4 lens, and I think the auto-focus of the lens is off. How can I test and adjust this reliably? Will this approach work with all of my lenses? If I had a different ...
What is back-focusing? Is it something I need to be worried about, or can I just live with it? How can I tell if my camera/lens is sufferring from it?
I was considering buying a Nikon D7000 but I have found that (as of 2011) many reviewers were reporting back focusing issues. I would like to verify if these issues are real, and if they are still ...
When a lens and camera are callibrated together, which is changed, and might other lenses be adversely affected?
I wonder what exactly is the calibration of a camera body and a particular lens. I know the effect, but how it is achieved? I recently bought 80-200 (the two-ring version), I was waiting for too ...