Sigma Releases MC-11 Firmware Update 1.25

David-Lynch-Juliens-Auction-Sony-a7SII

Bid on David Lynch’s Sony Cameras at Julien’s Auctions

Published: June 2, 2025 Here’s your chance to bid on David Lynch’s Sony a7S II and a7R II cameras and lenses at Julien’s Auction of

Read More »
Voigtlander-75mm-F1-8-E-Portrait-Heliar-Lens

Voigtländer 75mm f/1.8 Portrait Heliar Lens Available for Pre-Order NOW!

Published: May 30, 2025 Voigtländer Portrait Heliar 75mm f/1.8 ($999) full-frame E-mount lens offers a spherical aberration control ring that provides under- or over-corrected spherical

Read More »

Sony FX2 Cinema Camera Available for Pre-Order NOW!

Published: May 29, 2025 Sony FX2 Cinema Camera ($2,699) combines the comprehensive video capabilities of the Cinema Line with enhanced 33MP still image capture in

Read More »

5 thoughts on “Sigma Releases MC-11 Firmware Update 1.25”

  1. Why isn’t a similar firmware available for Sigma’s “native” Sony mount 135mm f1.8 lens? Isn’t MC-11 equivalent built-in in that lens?

    1. The native Sigma FE doesn’t need it. The update is aimed at improving the adapted lens. Even if Sigma tries to fool you by calling it a “Mount Converter”, MC-11 is an adapter.

  2. Been using the MC-11 on a A7RIII | Canon 400 f2.8L Mark I combo for about 4 months. I am getting mixed results. I have the latest firmware on both. My question is… I have read that the MC-11 is capable a much better results on Sigma EF glass and AF-C is nearly native on the newer Sigma lenses (Art and Sport). I’ve read that when the MC-11 is connected to Canon glass it operates in LA-EA3 mode and the frame rate drops as does the AF-C performance. So is that a restriction that Sigma is placing on the MC-11 or something Sony is doing?

    1. Ever speak in a foreign language country where half the people speak your language and the other half listen through a translator?

      The jokes get delayed laughs from half the crowd.

      Kinda like that.

      But even Sigma admits that MC-11 adapted Sigma EF lenses are NOT the same as native glass.

Leave a Comment

Your email address will not be published. Required fields are marked *