Almost bought! and I don't regret it! I tested two copies, it’s not worse! Abandoned the idea to switch to the second version, frankly not worth the money. The lens is slightly better than the first version, but costs more than twice as much! Pros: Improved first version, equalized distortion, sharpness, speed Some cons: I came across frankly soapy specimens. Movable rear lens when zooming - a vacuum cleaner!
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