Images not sharp
There are many factors for images not being sharp and exhibiting in many ways.
Lenses
Back focusing. The focusing is locking on behind the subject |
Forward focusing. The focusing is locking on in front of the subject |
Edge to edge focus. The edges of the image will be soft. |
Softness through out the range. This may be an indication of wear, in need of a calibration or a distortion in the lens assembly |
The lens needs a focal calibration |
Worn guide rollers |
Impact damage |
Dusty or smudged lens filter |
Lens guide rollers, when theses wear
out it creates sloppiness in the lens
causing resolution issues
Also see camera focal issues