I gave 2 stars because the lens is like a tank. Super strong but very heavy. As others have said, AF is pretty loud. It really doesn't bother me as much as the tracking. This lens tries to track your subject but just doesn't live up to the standards I set for the lens. AF hits or misses sometimes not at all and it's not as sharp as my 50mm 1.8 and for some reason the 1.4 here has more grain at the same ISO as my 1.8. I have returned this lens and am waiting for a refund. I'm only saving for Art 1.4.
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