Shane Hamilton
I bought this for a Nikon D3400 and the auto exposure/metering or focus confirmation did not function. I knew it was manual focus, which I was okay with, but the AE chip for Nikon did not work. It was supposed to have auto exposure/metering which means that in Aperture or Shutter priority, the metering would work allowing the automatic ISO to still function, but it did NOT. Any mode I would choose other than full Manual mode, the camera would flash "incompatible lens" and I could not use that function. The lens itself seems to be just fine, the glass was great and pictures come out very well when in focus. But the focus confirmation was also not functioning. Much like your camera will *beep* once the lens focuses, this lens did not when you manually had it in focus. Perhaps I had a defective lens, but I just ordered a different with autofocus and one that I knew for a fact worked on my camera body.