Sigma's MC-11 mount converters allow you to use your Sigma SA mount and EOS mount lenses with Sony's E-mount camera bodies, and now they work just a little better. The newly launched firmware version 1.06 fixes AF-issues that can occur with some lenses that are not officially compatible with the converter.

You can find a lens compatibility chart on the MC-11 product page, and further detail about the update on the Sigma support website. As usual, you can install the firmware using Sigma's Optimization Pro software.