It’s not worth buying as a universal to cover focal 17-85, it’s better to take an analogue from Sigma or Tamron. Red price 10-13 thousand. Throw out the stub from there (well, you don’t need it even at 85), in extreme cases, you can rely on it or use a monopod / tripod. You also need a front lens retainer so that it does not fall out. Some pros: As a whale lens goes, it's better than 18-200. Often helped out when you need a fairly wide angle and distortion effect (which abounds at wide angle) Its cons: The trunk leaves itself, hesitated. There is also a lot of dust inside (it's good that the sand does not get in) Distortion even at telephoto, shooting architecture is just terrible, and portraits are only at long focus if we don’t want to get a hamster. Dark even though the lens is large (poor lens system)