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sigma

  1. J

    Should I replace my lens? Hear me out pls

    Weird story but I am very curious, yet a tad worried. I have a 56mm f1.6 Sigma lens, amazing lens btw. I left it attached to my Panasonic G85/G80 overnight and for whatever reason this morning I woke up to find a lot of dust on the glass part of the lens. I tried to wipe it off, but couldn't...