I bought it for a test, I got more than I expected for its price (in comparison with native glasses and Sigma). Large aperture, good sharpness, and allows you to shoot at a fully open aperture. Nimble autofocus. Good constructive, completely metal, including a hood. It feels more solid in the hands than native Kenon glasses in plastic cases. It's a pity that, for some unknown reason, eos-m only comes in silver. Of the minuses - quite a lot of chromate on the open (corrected in the editor). A nice feature is the aperture ring. Adds one physical control, in AV mode the ring is more convenient than control through the knobs on the camera or menu. According to comparative tests, it is slightly inferior to native optics. But inferior quite a bit, and costs almost half as much. Thanks to the Chinese for their progress.
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