Previously I had the 17-55mm with 2.8mm bezel. The extended zoom range was and remains more helpful than the better light output me. In particular, the 15mm help Lanschaftsaufnahmen. Mechanical top and really dibasic. Compact in terms of size. Am not a pixel counter, but sharpness and resolution are great for normal claims. Stability and focus to operate reliably, quickly and quietly. In my view, a top-always top lens for almost all shooting situations a hobby photographer. Buy and be happy.
