The lens left an unpleasant impression. A kind of Chinese imperfection without the ability to finish up to working condition. I admit the likelihood that I came across frankly defective specimens, so I put the lens 3, not 2. I highly recommend not buying THIS via the Internet without touching it, there are a lot of chances that you will throw money away. Some pros: Compared with a direct competitor, only perhaps ergonomics. Has some cons I will not attribute the plasticity of the design to the shortcomings, it is rather a tribute to cheapness, and this lens has more serious problems. For example, no autofocus, it smears more than the canon fifty dollars, even at the central point where the canon catches the focus, this one can take it and fly far into the back. Personally, I tried 3 copies from different sellers, and all of them had problems with autofocus to one degree or another. A decent part of the pictures without sharpness zones at all, like in milk . Compared to the yongnuo specimens that came across to me, the well-chosen and modified Kenon 1.8 is simply ideal.
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