Metabones have announced four new adapters that expand on the capabilities of their existing Smart Adapter and Speed Booster ranges.

The versions of most interest to stills shooters are the Canon EF-E mount T Speed Booster ULTRA II and the Canon EF-E mount T Smart Adapter. They’ll both adapt your Canon EOS-mount lenses to work with Sony E-mount cameras, and the Speed Booster will bring a full-frame look and an effective increase in aperture (and decrease in focal length) to your lenses.

Updates to the new versions include a gasket on the E-mount side to seal the sensor off from dust and moisture, and a dedicated switch to control in-body image stabilisation options on compatible cameras.

Previously it had been difficult to tell whether image stabilisation had been enabled on the lens or in the body of the camera - the adapters support five-axis IBIS on the A7II, A7RII and A7SII if the lens can pass it electronic distance information (and three-axis stabilisation if it can’t). There’s now an LED built into the adapter to help show more clearly which mode is active.

The Speedbooster variants contain optical elements that change the effective focal length and f/ number of the attached lens.

The adapters still support contrast-detect AF on all E-mount cameras, and if you have a A7RII, A7II, A6300 and A6500 you’ll benefit from phase-detect AF on your converted lens. They’ll also pass EXIF information to the camera body, so you’ll still be able to capture metadata about how your picture was taken.

The Speedbooster variant features optical elements that make the attached lens 0.71x wider and a stop faster. So a Canon 50mm 1.2L lens would have an effective focal length of 35.5mm and an effective aperture wide open of around f/0.8. Tasty. This is obviously of particular use to APS-C shooters who want to achieve a wider field of view, and we’d expect Metabones to announce a Micro 4/3 version in due course. The previous version of the Speedbooster paired with a Panasonic GH4 made a particularly useful combination and a new Speedbooster paired with a new GH5 would also likely be a good match.

The Smart Adapter doesn’t have any optical elements. This is the CINE version which also features a locking lens mount.

If you’re really paranoid about losing a lens (or have some incredibly valuable vintage glass you’re mounting to your camera) Metabones are also launching versions of the adapters with locking lens mounts. These are really aimed at video shooters, but have the benefit of a very secure lever lock mechanism to minimise wiggle and make sure the connection between lens and camera body is rock solid.

These locking versions are expected to retail for $699 and $449 for the Speedbooster and regular versions respectively. No word yet on how much the regular versions will cost, but they’ll likely be slightly less as they’re not as mechnically complex.