Hello to all. This lens is a small event. When opening the package we feel a sense of seriousness and good construction in appearance. It inspires confidence. From the first all trials, we are pleasantly surprised by its brightness and velocity AF In practice, it shows a very good sharpness even at f2.8 which is not common and therefore makes it usable in low light but, like all such goals must stop down a little. This is best felt on improving the dive. However, it will remain a significant vignetting and a slight distortion at extreme focal lengths but very easy to blur in post processing. This objective is (in its class) the only one I know to have a stabilizer (at this price level, it creates the event). Question stabilizer are not looking. It has only two positions M and A. In fact this one can recognize micro vertical movements (tracking moving objects) without altering the effect of voluntary spun. J 'noticed this by the same clichés with a target stabilizer two positions. On this point it remains to be confirmed by other tests. Some accuse him focus ring without stop but most are so famous that my 16-35 f 2.8 L USM2. In summary, this goal is "diversion" to compete and it: for a price almost divided by two. Best of all, it is stabilized. For a handful of uros more, it would have been perfect with a metal construction. For Amazon, it is as usual: A flawless. Sorry to be so long but I think it is worth it.
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24 March 2013. The RAW development software comes with the lens. It does not allow cropping or recovery prospects (among others). More generally, I do not find it very convenient and stress, I remain DxO-v8. This does not affect the quality of the lens being tested him and recognized by DxO.
The April 16, 2013. My comentaire of 18 March 2013, I had considered that this target had a stabilizing two positions, but able to detect "fuzzy yarn" voluntary. (See § Question stabilizer are not looking. He has only two positions M and A ... etc.) It is sometimes the case on some models. After a number of tests (some fairly concluents) it is my opinion that the stabilizer is trying to correct, performing voluntary spun as a move. On a fast spun there but has little impact on the rather slow monitored, the correction is sufficiently felt. I gather that the stabilizer of this goal operates das both directions (horizontal and vertical) without possibility of splitting the two functions and, permanently. This is only a simple observation, the intrinsic qualities of this goal are very real. This digression should not condition the purchase decision: It is actually the blow. Cordially
