Adapter compatibility · Canon → Sony
Canon EF to Sony E adapter compatibility
Mounting a Canon EF lens on a Sony E (incl. FE) body — the feasibility verdict, AF / IS / aperture-control / infinity-focus outcome, image-circle relationship, official and reputable third-party adapter SKUs, and the caveats worth knowing before you buy.
Verdict at a glance
Canon EF on Sony α — the canonical cross-brand migration path
Of every cross-brand pairing in this catalogue, Canon EF onto Sony α is by volume the most-asked combination. Photographers selling a 5D-series or R-series Canon body but keeping their EF L-series glass — the 24–70 f/2.8L III, 70–200 f/2.8L IS III, 100–400 II — need autofocus, IS pass-through, and aperture control to keep working on the new α7 IV / α7R V / α1 / α9 III. Four SKUs in our catalogue serve this pair, and the right pick depends almost entirely on which EF lenses you actually own.
Sigma's MC-11 is the only adapter the lens-maker itself publishes a supported list against — and that list is limited to Sigma's Art / Sports / Contemporary EF lenses. On a Sigma 35 mm f/1.4 DG HSM Art or 150–600 mm Contemporary, Eye AF tracks at near-native speed on the α7 IV. On Canon-brand glass the MC-11 falls back to unsupported behaviour: usually fine, occasionally jittery on continuous AF.
Metabones EF-E Mark V is the long-standing premium pick for Canon-brand IS lenses. It carries five firmware revisions, all delivered via the side USB-C port, and Metabones publishes per-firmware lens-compat notes — the most recent revisions unlocked reliable AF on the 70–200 f/2.8L IS III and 100–400 II that earlier MC-11s could not match. Pair it with a full-frame α body and you keep the lens's design field of view.
Viltrox EF-NEX IV and Fotodiox Pro EF-NEX cover the budget end. Both run contrast-detect AF only — fine for stills with single-shot focus, frustrating for video pulls or sports. If your EF kit is screw-drive AF (the 1991–2003 generation, 50 f/1.8 II included), no adapter on the market drives it; you keep manual focus on the body.
Going to an APS-C α body (α6700, FX30, ZV-E10 II)? The Metabones Speed Booster Ultra EF-E pulls the EF lens's image circle back to full-frame coverage and adds 1⅓ stops — a 24 mm f/2.8 EF becomes ≈17 mm f/2.0 equivalent on the APS-C sensor.
Mount specs
Lens side
Canon EF
- Flange distance
- 44 mm
- Protocol
- Canon EF
- Type
- DSLR
Body side
Sony E (incl. FE)
- Flange distance
- 18 mm
- Protocol
- Sony E
- Type
- mirrorless
Flange-distance gap the adapter fills: 26.00 mm (44 mm − 18 mm). That gap is what a mechanical adapter has to fill to hold the lens at its design distance from the sensor.
Adapter SKUs we track
8 adapter SKUs in our catalogue spans this pair. Each link opens the SKU detail page — electronic-contact count, firmware history, per-lens compatibility notes.
- Sigma MC-112016 · 9 contacts · firmware-updatable
Excellent native-like AF performance with Sigma's own EF Art and Sports lenses; Canon-brand EF lens support varies by model.
- Metabones EF-E Mark V2017 · 11 contacts · firmware-updatable
Long-running EF-on-Sony adapter; Mark V adds improved phase-detect AF support on PDAF-capable Sony bodies.
- Metabones Speed Booster ULTRA 0.71× EF-E2014 · 11 contacts · firmware-updatable · focal reducer
Focal reducer for APS-C Sony E bodies (a6xxx series) — multiplies aperture by ~1 stop and reduces focal length by 0.71×, effectively letting EF full-frame lenses cover the APS-C sensor with extra light.
- Viltrox EF-NEX IV (EF-E)2018 · 9 contacts · firmware-updatable
Budget EF-on-Sony adapter with electronic communication and firmware-updatable AF support.
- Fotodiox Pro EF-NEX2018 · 9 contacts
Budget electronic EF-on-Sony adapter; passes electronic aperture and EXIF, supports basic AF on most modern Canon EF and Sigma DG lenses.
- Kipon Baveyes EF-FE 0.7x2017 · 9 contacts · firmware-updatable · focal reducer
0.7× focal reducer (Brian Caldwell optics under Caldwell Photographic licence — same patented IP family as Metabones' Speed Booster ULTRA) for adapting EF full-frame lenses to Sony APS-C bodies (a6000-series, FX30). ~1 stop wider effective aperture and 0.7× focal-length factor on top of the APS-C crop.
- Commlite CM-EF-NEX HS2018 · 9 contacts · firmware-updatable
Second-generation Commlite EF-on-Sony adapter with USB-C firmware port and on-sensor PDAF support — sits between Fotodiox (no firmware, contrast-detect biased) and Sigma MC-11 / Metabones EF-E V (broader certified per-lens charts) on the price-to-AF curve.
Built-in variable ND filter (≈2–8 stops) dialled via a rotating ring on the adapter body — the defining feature, giving exposure control without front filters.
Caveats
- AF speed and tracking depends on lens; Sigma's own EF lenses with MC-11 perform closest to native.
- Some third-party EF lenses (Tamron, older Sigma) have known AF quirks — check per-lens compatibility lists.
- IS on the lens is preserved; IBIS continues to work on body-stabilised Sony bodies.
Common questions
- Will Canon EF lenses autofocus on a Sony E (incl. FE) body through an adapter?
- Yes — through curated adapters, full autofocus is preserved on Canon EF → Sony E pairings. Single-shot AF and continuous-tracking AF both work, although exact tracking quality depends on the specific adapter SKU's firmware revision and the lens generation.
- Does in-lens image stabilization (IS / VR / OS) still work through a Canon EF → Sony E adapter?
- Yes — curated electronic adapters forward stabilisation commands from the Sony E body to the Canon EF lens's IS / VR / OS unit, so in-lens stabilisation operates as it would on a native body. Combined with Sony E body IBIS (where present), dual-axis stabilisation works.
- What's the most-recommended Canon EF → Sony E adapter?
- The two curated Canon EF → Sony E adapters in our catalogue are the Sigma MC-11 and the Metabones EF-E Mark V. Their detail pages cover electronic-contact counts, firmware history, and per-lens compatibility notes; the Sigma MC-11 listing leads our adapter SKUs section for this pair.