Sigma MOUNT CONVERTER MC-11 (EF-E) firmware v1.40

Sigma · Released Apr 7, 2022 · First seen Jul 5, 2026

v1.40 is not the latest firmware for the Sigma MOUNT CONVERTER MC-11 (EF-E): the current version is v1.43 (August 27, 2026). Go to v1.43

What's in this update

It has improved the phenomenon whereby t​he lens’s optical stabilizer effect differs depe​nding on the shutter type and drive mode used.

updatemystuff.com never hosts firmware files — always download from the official source.

Get it from Sigma

Watch the MOUNT CONVERTER MC-11 (EF-E) for updates

Create a free account and get an email the moment Sigma publishes new firmware.

Create account & watch

Other versions for this product

See the full firmware history for the MOUNT CONVERTER MC-11 (EF-E)