Metabones · 2 adapters
Metabones camera lens adapters
Metabones is the long-running EF-on-mirrorless specialist, headquartered between Hong Kong and Vancouver. The EF-E Mark V (2017) is its workhorse for phase-detect AF on PDAF-capable Sony bodies, and the Speed Booster ULTRA 0.71× EF-E (2014) is the canonical focal reducer for EF full-frame glass on Sony APS-C — multiplying aperture by roughly one stop while shrinking the image circle. Both adapters update over a side-mounted USB port; Metabones publishes a maintained per-lens compatibility chart with each release.
Every Metabones adapter we track
Sorted newest first. Open any row for the full per-SKU compatibility page — what the adapter preserves (AF / IS / aperture / infinity focus), firmware history, mount-side cross-links, and sibling adapters worth comparing.
Long-running EF-on-Sony adapter; Mark V adds improved phase-detect AF support on PDAF-capable Sony bodies.
firmware-updatableFocal 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.
firmware-updatablerequires glass
Common questions
- Are Metabones adapters worth the price difference over Viltrox or Fotodiox?
- Yes if you need the most reliable phase-detect AF on PDAF-capable Sony bodies (A7R V, A1, A9 III, A7 IV, FX-series) with a wide range of Canon-brand EF glass — the EF-E Mark V has the longest-running per-lens compatibility chart in the third-party EF-on-Sony category. Viltrox and Fotodiox are 30-50% cheaper but lag on AF tracking, especially with EF L super-telephotos. If your EF kit is Sigma-only (Art / Sports), Sigma MC-11 matches Metabones at lower cost.
- How do I update Metabones adapter firmware?
- Through the side-mounted USB-A port (mini-USB on early EF-E units, full USB-C on the most recent Speed Booster generations). Connect to a Mac or Windows machine, run the Metabones Firmware Tool from metabones.com, and the tool flashes the adapter's firmware directly — no lens / body involvement. The publisher maintains versioned changelogs back to 2015, which makes Metabones one of the most transparent firmware-update operations in the third-party adapter category.
- Which Metabones Speed Booster do I need for my Sony body?
- For a full-frame Sony body (A7 / A9 / A1 series), no Speed Booster — the lens's image circle already matches your sensor; use the plain EF-E Mark V. For an APS-C Sony body (A6000-series, FX30), the Speed Booster ULTRA 0.71× EF-E reduces a full-frame EF lens's image circle to APS-C while adding ~1 stop of light and a 0.71× focal-length factor. For Sony APS-C cine bodies on a tripod, the geared-ring Cine variant is mechanically identical at 0.71× but built for rod-supported focus pulls.
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