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Might sound dumb, but I struggled to enjoy the way camera handles lens corrections, so I taped the connectors out, hence no f-stop report in exif. Got this lens with X-T1 that didn't support the lens at all, loved it, then switched to X-T2, then I had a period of not liking this lens very much due to tons of extra noise in corners at high ISO (aggressive vingette correction). In the end I just taped it out and called it a job well done. It's subjective, but as far as I'm concerned, disabling lens corrections was a proper improvement.