Super lens but only for those who have set it, and I'll use one calf. Warranty is four years from Sigma ... good lens bokeh sufficient range to 18 mm and at f1.8 acuity without significant order aberrations and contrast Vignette
must be set for each body, only seperatly APS-C on the D5100 FF and BF to sit on the D7100 standards in RF freezes popis am unable to set it on both body that I could work on both simultaneously without Kupi dlasieho piece of what led to the repayment of the lens 14 day ...
absolutely superb lens with an incredible ability to transfer color and contrast, excellent quiet and accurate AF
Well, about the price and then an absolute necessity to adjust it to the camera body
perfect lens for what Fotim ...
aperture, focus, focus, speed, construction firm, fine rings of resistance and smooth running
possible weight, but I do not mind