The Sigma TC-2011 is a 2x teleconverter compatible with select Sigma Global Vision lenses in the SA or L-mount bayonet, doubling focal length while reducing maximum aperture by two stops. It preserves full electronic communication for autofocus and OSS operation with compatible lenses. The TC-2011 is part of Sigma's TC series tele-converters for the Global Vision lens lineup.
Product released: April 1, 2015
Latest firmware version
Version 1.1, released May 25, 2023
Last checked for updates: Oct 31, 2026 18:31 UTC
What's new in version 1.1
It is compatible with teleconverter-compatible Leica Camera AG L-mount lenses.
The Sigma TC-2011 is a 2x teleconverter compatible with select Sigma Global Vision lenses in the SA or L-mount bayonet, doubling focal length while reducing maximum aperture by two stops. It preserves full electronic communication for autofocus and OSS operation with compatible lenses. The TC-2011 is part of Sigma's TC series tele-converters for the Global Vision lens lineup. It was originally released on April 1, 2015.
What is the latest firmware version of Sigma Tele Converter (TC-2011)?
The latest firmware version of Sigma Tele Converter (TC-2011) is 1.1. It was released on May 25, 2023.
What changed in Sigma Tele Converter (TC-2011) firmware version 1.1?
Sigma Tele Converter (TC-2011) firmware version 1.1 includes the following changes: It is compatible with teleconverter-compatible Leica Camera AG L-mount lenses.
Where can I download the latest Sigma Tele Converter (TC-2011) firmware?
Details and download instructions for the latest Sigma Tele Converter (TC-2011) firmware (version 1.1) are on Sigma's official release page: https://www.sigma-global.com/en/support/firmware/tc-1411-2011/?mount=tc-2011