If you have eliminated user issues, our Service Department is here to help remedy any fault with your Nikon or Canon body or lens; but there may still be some investigation required to identify the cause of the problem. Sample images can often help us in this respect, but they must be RAW or unedited JPEGs. This way, we can view the shooting data and even the focus area that was in use at the time of shooting. Your images may help us to identify the problem, or at least to reproduce the conditions in which it is exhibited. It will also help if you can identify which item is giving you the problem; are your images soft with numerous lenses, indicating a possible fault with the body, or is a single lens the culprit?