Sigma · Canon EF → Sony E adapter
Sigma MC-11 — Canon EF → Sony E adapter
Excellent native-like AF performance with Sigma's own EF Art and Sports lenses; Canon-brand EF lens support varies by model.
At a glance
- Vendor
- Sigma
- Release year
- 2016
- Body-side contacts
- 9 pins
- Flags
- firmware-updatableweather-sealed —requires glass —
What this adapter preserves
Compatibility for Canon EF lens on a Sony E body (computed from the lensmount dataset — open the Canon EF to Sony E adapter page for the full verdict, flange clearance, and adapter caveats).
- Focus: Full AF
- IS: IS / IBIS preserved
- Aperture: Electronic aperture
- Infinity focus: Reaches infinity
What it does
Firmware-updatable via the Sigma USB Dock (lens-side) using Sigma Optimization Pro — major lens-compat additions arrived through v1.10–v1.40.
Firmware history
Firmware history
- v1.10
- Sigma Global Vision Art / Sports / Contemporary EF lens compatibility entries added
- v1.20
- Phase-detect AF tracking improvements on Sony PDAF bodies
- Additional Sigma Global Vision EF lens entries
- v1.30
- Canon-brand EF lens compatibility table added (curated list)
- v1.40
- Tamron EF lens compatibility entries added
- Further Canon-brand EF lens compatibility additions
Approximate milestones — verify against the Sigma firmware page for the authoritative changelog.
Specific lens compatibility
Per-lens notes for the Sigma MC-11 based on the vendor's published compatibility chart and community-tested behaviour. Three states: works (✓) — full AF / IS / aperture behave as native; partial (⚠) — usable with a documented caveat; issue (✗) — known incompatibility or rough edge.
| Lens | Status | Note |
|---|---|---|
| Sigma 35 mm f/1.4 DG HSM Art (EF) | Works | Native-like single-shot AF and reliable continuous tracking on Sony PDAF bodies. Certified from v1.10 onwards. |
| Sigma 100-400 mm f/5-6.3 DG OS HSM Contemporary (EF) | Works | Full OS pass-through, continuous AF holds well on a7 III / a9 once v1.20 tracking refinements are installed. |
| Canon EF 70-200 mm f/2.8L IS III USM | Partial | Listed in v1.30's Canon-brand chart. Single-shot AF is reliable; continuous tracking lags native Sony FE noticeably and may hunt on fast-moving subjects. |
| Canon EF 17-40 mm f/4L USM | Issue | AF acquires, but the lens's older USM motor often pulses on subject re-acquisition and corner sharpness on full-frame Sony at f/4 is noticeably soft. Stop down to f/5.6 or pick a newer wide. |
| Tamron 28-75 mm f/2.8 Di III VXD G2 | Issue | Not supported — the G2 uses Tamron's newer protocol Sigma never certified on the MC-11. Use a Tamron-native FE mount instead; or for the original 28-75 Di VC USD (EF mount), see v1.40 firmware's Tamron entries. |
Common questions
- Does the Sigma MC-11 support Canon EF-S APS-C lenses?
- The MC-11 physically mounts EF-S lenses, but Sigma only certifies AF performance on the Sigma Global Vision EF lineup. EF-S lens behaviour varies widely and isn't officially supported.
- Do I need the Sigma USB Dock to update the MC-11 firmware?
- Yes — the MC-11 itself plugs into the Sigma USB Dock (the same accessory Sigma sells for their lenses). Firmware is pushed via Sigma Optimization Pro on Windows or macOS; v1.10 through v1.40 added the bulk of the lens-compat table.
- What AF performance can I expect with Canon-brand EF lenses?
- Variable. Canon-brand lens compatibility was added in v1.30 firmware as a curated chart. Most modern Canon L USM lenses focus reliably for single-shot, but continuous tracking lags Sony's native FE AF noticeably.
Head-to-head comparisons
Mounts on either side
Other adapters worth comparing
More from Sigma
Same lens-side mount (Canon EF)
- Canon EF-EOS R — onto Canon RF · 2018
- Sigma MC-21 — onto L-Mount · 2019
- Metabones EF-E Mark V — onto Sony E · 2017
- Metabones Speed Booster ULTRA 0.71× EF-E — onto Sony E · 2014
- Viltrox EF-EOS R5 (autofocus EF-to-RF) — onto Canon RF · 2024
- Viltrox EF-NEX IV (EF-E) — onto Sony E · 2018
- Fringer EF-FX Pro II — onto Fujifilm X · 2020
- Fringer EF-GFX Pro — onto Fujifilm GFX · 2019
- Canon EF-EOS M — onto Canon EF-M · 2012
- Fotodiox Pro EF-NEX — onto Sony E · 2018
- Kipon Baveyes EF-FE 0.7x — onto Sony E · 2017
- Kipon Baveyes EF-FX 0.7x — onto Fujifilm X · 2017
- Commlite CM-EF-NEX HS — onto Sony E · 2018
- Commlite CM-EF-EOS R — onto Canon RF · 2019
- Viltrox EF-M2 II — onto Micro Four Thirds · 2018
- Fotodiox Vizelex ND Throttle EF-NEX — onto Sony E · 2014
- Fringer EF-NZ II — onto Nikon Z · 2023
Same body-side mount (Sony E)
- Sony LA-EA5 — from Sony A · 2020
- Metabones EF-E Mark V — from Canon EF · 2017
- Metabones Speed Booster ULTRA 0.71× EF-E — from Canon EF · 2014
- Viltrox EF-NEX IV (EF-E) — from Canon EF · 2018
- Techart LM-EA9 — from Leica M · 2022
- Voigtländer VM-E Close Focus — from Leica M · 2015
- Sony LA-EA4 — from Sony A · 2014
- Sony LA-EA3 — from Sony A · 2013
- Fotodiox Pro EF-NEX — from Canon EF · 2018
- K&F Concept M42-NEX Pro — from M42 · 2018
- K&F Concept Nikon F-NEX Pro — from Nikon F · 2019
- K&F Concept Pentax K-NEX Pro — from Pentax K · 2019
- Urth M42 to Sony E — from M42 · 2019
- Urth Leica M to Sony E — from Leica M · 2020
- Kipon Baveyes EF-FE 0.7x — from Canon EF · 2017
- Novoflex SONY/OM — from Olympus OM · 2016
- 7Artisans M-FE — from Leica M · 2018
- Commlite CM-EF-NEX HS — from Canon EF · 2018
- Commlite CM-ENF-E1 Pro — from Nikon F · 2018
- Fotodiox Vizelex ND Throttle EF-NEX — from Canon EF · 2014
- K&F Concept C/Y-NEX — from Contax · 2018
- Urth Contax/Yashica to Sony E — from Contax · 2020
- K&F Concept MD-NEX — from Minolta SR · 2016
- K&F Concept PK-NEX — from Pentax K · 2016
- Fotodiox FD-NEX — from Canon FD · 2011
- Urth Olympus OM-E — from Olympus OM · 2020
Keep exploring
Back to every adapter we track, or jump to the full cross-brand compatibility matrix. Need a kit recommendation? Open the adapter picker.