Have you ever used a nice big aperture and got home only to find out the focus isn’t on the part you wanted? Or done a portrait and their ears are nice and sharp not their eyes?
If so, you might have a lens focusing issue. There are ways to test for that and depending on your camera model you may be able to adjust it.
Ford Focus Tune Up Cost
I found a video where the host walks you through the process of fine tuning autofocus for your DSLR. I think her accent is great and I love knowing that people around the world have the same issues and there are great photographers and educators everywhere.
Sep 23, 2014 On 2 different D810 bodies, none of my lenses needed any AF fine tune at all. 0 was always sharpest. Also, keep in mind AF fine tune only works at the distance and focal length you tune at, often making it worse at other distances. Lesson 18 – AutoFocus Fine Tuning (Back Focus and Front Focus) By easyexposure August 9, 2012 - 3:58 am February 2, 2014 Photography Lessons In this photography lesson I will show you a simple method of testing auto focus in your camera, see if you have front or back focusing problem and how to do an AF fine tuning.
Focus Tune Download
Hopefully that solved your issues and everything is tack sharp now, exactly where you want it.