Tips for cleaning sticky ZEN coating?

Started Jul 3, 2007 | Discussions thread
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Prognathous Veteran Member • Posts: 9,322
Tips for cleaning sticky ZEN coating?

I have an old Sigma 90mm Macro lens that feels very sticky to touch due to the age effect on the external "ZEN" coating (used by Sigma in the 90's). Is there any way to get rid of this coating, or at the very least get rid of the sticky feeling?

Thanks,
Prog.

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Sony a77 II Tamron SP AF 60mm F2 Di II LD IF Macro Tamron 18-270mm F3.5-6.3 Di II PZD Sony DT 16-50mm F2.8 SSM Olympus Stylus 1s +13 more
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