Sigma 30mm f1.4 strange circle appearing

Started Jan 7, 2019 | Discussions thread
Franz Kerschbaum
Franz Kerschbaum Contributing Member • Posts: 933
Re: Sigma 30mm f1.4 strange circle appearing

Update your obviously antique sigma art firmware and its gone ... https://www.sigma-global.com/en/download/lenses/firmware/popups/a_35_14/

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