Any new camera take a while to settle in and for the user to become confident with its capabilities. One of the things that moving from a prosumer to a DSLR will do is to make obvious any errors in camera technique. Here are a series of shots to determine practical sharpness of the 18-70 kit lens, and explore back focus potential, but mostly dealing with the 100-300 f4.5(32)-5.6 which appears very soft at long range.