Sigma MOUNT CONVERTER MC-11 (SA-E) firmware v1.25

Sigma · Released Mar 25, 2021 · First seen Jul 5, 2026

v1.25 is not the latest firmware for the Sigma MOUNT CONVERTER MC-11 (SA-E): the current version is v1.28 (August 27, 2026). Go to v1.28

What's in this update

It makes the converter c​ompatible with the SIGMA 500mm F4 DG OS HSM ​| Sports in SIGMA SA mount, that has the latest firmware Ver.1.03.

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Other versions for this product

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