A revolution 2

Such optical, up slightly technically unimaginable hardly present any defects, even though this is a first of its kind. One would sattendre (see forgive) to imperfections being given the prowess that is such a tool. There is nothing nen, on the contrary, not content to BE good place where you lattend, the Sigma 18-35 / 1.8 even allows BE to the same level (see best) professional optics that some big brands. We are dealing here with a product well thought out, well made and well finished. Without going up to say that the rendering quality is similar to a full optical format, I must admit that we greatly closer. And to top it all, the price range of this lens is quite reasonable given the quality of what has.

One place disappoints me a bit: the quality of autofocus. As said, loptique naccroche not as much and as precisely as the Nikkor optics with which i work habit and is particularly taken to default as soon as the light is too rare. By cons, no worries in terms of speed or discretion, the goal is quite ok at this level.

Also, I think that it will be necessary to invest in the Dock USB Sigma (~ 50) allowing micro adjustments by focal distance and to perfect shooting and the accuracy of the development according to our using.