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- Charles.
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Any ideas what has caused this and how to clean it? I have checked the battery and it is clean.
Looks like it has the same sort of covering as the Nikons. Is it just the rubberised area? Probably this stuff degrades a little over time, maybe depending on how the camera is stored and what it's in contact with.Fujifilm finepix HS 50 exr
I'm guessing the Betron cleaner won't do much if IPA has already failed. A few applications of it and a period of open airing worked well on the back of my F100 (oddly, the front grips aren't affected). My old D70 has a more serious case (all the grips are tacky) and it was much less effective. It would probably be a good camera to experiment on with serious IPA treatment. I've also seen these products mentioned:I call this the Sigma Stigma. Obviously it's not just Sigma, a handful of brands dabbled with this rubberised skin in the 90s or thereabouts. Then 10 years later this happens.
I've had limited success with isopropryl alcohol (surgical spirits, IPA - not to be confused with India Pale Ale). A word of advice though: beware of using soft tissues, whether you're treating with alcohol or just doing nothing but wiping it with the tissue. Soft tissues will just add bits of unremovable tissue to the existing mess.
Maybe instead use cheapo copier paper, paper that has that sheen to it. Or cheapo cheesecloth criss-crossed with blue lines, that has that sheen to it. These materials are less likely to rub off onto the sticky barrel.
Let me know if Betron does the job (post #2 of this thread).