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Sigma 30mm 2.8 EX DN - how to disassemble for cleaning?

Started Aug 19, 2017 | Questions thread
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seboseba
seboseba Forum Member • Posts: 58
Sigma 30mm 2.8 EX DN - how to disassemble for cleaning?

Hi there,

I have the lens in the title with a micro 4/3rds mount.

Unfortunately it has a big speck of dust smack in the middle of the second lens element starting from the rear. I'd like to take that away as it is visible on pictures from F11 to F22.

I am used to servicing and cleaning manual focus lenses and I have the tools to do so, but I am weary of disassembling the Sigma because I might damage the circuitry inside and the lens is currently the most expensive of my measly setup!

Has anyone worked on this lens before? Are the lens elements glued together or are they easy to take out from the barrel?

Any help would be greatly appreciated.

Cheers, Seb

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