New answers tagged back-focus
If you're asking so you can do it yourself, sorry but you're out of luck. The following only applies to DSLR cameras. When adjusting lenses, collimators are used and can cost tens of thousands of dollars. They are finely tuned instruments. A collimator optically emulates infinity (over 100 meters or so) and come in different sizes. It shines light through ...
Before you send your camaera and lens for calibration, you might try AF fine tune yourself. Please see: https://nikoneurope-en.custhelp.com/app/answers/detail/a_id/51633 You might also try the 'green dot' technique: http://www.dpreview.com/forums/post/50774257
They will most likely just adjust the lens, but use the camera body to judge how much to the lens needs adjusting. As a result your other lenses ought to carry on working fine. In terms of what they can actually do to calibrate the lens, then it will vary depending on the lens but in most cases there will be a position sensor in the lens which detects where ...
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