Features:

  • BUNDLE INCLUDES: Sigma MC-11 Lens Mount Converter (Canon EF to Sony E-Mount), SanDisk Ultra 32GB Memory Card, Small Neoprene Lens Pouch, Lens Pen Cleaning Tool, and Professional Dust Blower
  • COMPATIBILITY: For use with Sony E-mount camera body only
  • CONVERTS CANON EF-MOUNT to SONY E-MOUNT: It allows you to use your Canon EF-mount interchangeable lenses with the Sony E-mount camera body
  • BUILT-IN LENS DATA: The converter incorporates all necessary data for the compatible lens, and uses a dedicated control program to optimize AF drive, aperture control, and other functions. It is compatible with functions of the camera that maintain peripheral brightness and correct transverse chromatic aberration, distortion, and more.
  • SIGMA AUTHORIZED DEALER: Includes USA Manufacturer's Warranty
It just works. Make sure to update the firmware.

I was not expecting native level performance from this device but I was totally blown away. My Canon lenses adapt to my A7iii and perform like Sony lenses. In fact, my 70-200 is sharper on the Sony, and the autofocus beats the 85 1.4 GM. The sigma 35 performs identically to the native EF mount version, except for focusing noise, and even my unsupported Canon lenses work with full AF, including eye AF. At 249 this is a must have, but at the $149 sale price it’s a no brainer. Canon lenses are going for huge discounts now thanks to people going mirrorless. It’s a great time to acquire some stellar glass!

Works perfectly

Exceeded my hopes. Auto focus works just fine with my Canon 16-35F4 EF, Canon 24-105F4 EF, Canon 70-200 F2.8 EF, Canon 50MM 1.8 EF on the Sony A7R III body. AFC with eye focus works fine.

Excellent adapter

It works perfectly with my A7m3, most the Canon L lens works great on it including eye focus. 100-400 ii is the worst one, over 200mm focal length the focus is still lagging. Like all the others, video recording focus not working very well. Generally, It’s amazing gadget, very happy with it.

Great economical solution to swap systems Canon to Sony

Works as expected with the Canon lenses I tried, 24-70 f2.8, 85mm 1.8, 40mm 2.8 and 70-200 f4. The eye AF works, not as fast as native lenses, but it works fast enough.

Good deal at $149 when it is on sale

I got this primarily as a gift but the recipient reports it works like a charm on his Sony A6000 using a Canon 24-105 lens I loaned him. AF and IS work as expected but perhaps a bit slow compared to a native Canon body. He did however end up returning it as the A6000 body is quite small and once the adapter and Canon lens was mounted he found it too unwieldy to operate. My be better suited to a A7 Full Frame body with a grip to help offset the lens balance. Overall it was a great deal at the sale price of $149.

Very solid built

Works well enough for me, very secure fit, focuses very well using my Canon 17-40mm with a Sony A7iii.

Great Adapter

Works well for me on the Sony A7 II with my Canon lenses. In the dim light, performance decreases, but it is still more than acceptable. Keep in mind that certain AF functionality is not supported with this adapter (e.g. eye focus etc.). Paid $149 during Christmas sale. A real value for money!

Good converter...But!

Well made and functions as advertised, in general. One of the reasons I bought it, perhaps the main reason, was to use my Canon EF-S 55-250 lens on my Sony alpha 6000 body; however, the adapter/converter will not accept the Canon EF-S lens. This was not made clear in the description on Amazon. I'm keeping it because my Sigma 18-300 Canon-mount lens fits it and works well with the alpha 6000 body, although that lens is mainly used with another camera. The auto focus works OK and there is no apparent vignetting.

Sigma Lens adaptor works, mostly.

Works well with my Canon prime 50MM lens and my Sigma 18mm-300mm lens. Doesn't work at all with a Canon Kit Lens, which is not a big deal since I never use the lens. And doesn't work with a Tokina wide angle Canon mount lens. Also not a deal breaker. Overall, for the money, a good deal. Focus Camera did a great job getting it to me on time. They seem like a great company to work with as I've purchased things from them before and everything was always on time and as advertised.

Doesn't work with all lenses

Great deal at the time I bought and a neccessity since I was switching to a Sony A7III. Before using make sure to check that it's updated to the most recent firmware. Once I updated I tried several lenses including a Tamron 150-600 G2, a Sigma 150-60 C, and a Tokina SD 16-28 F2.8. The first two worked to expectations considering they aren't native lenses to the Sony but I had issues with the Tokina regarding no AF. The photo was taken using the MC-11 with the Sigma lens. Shipping was fast and easy and it came in the manufacturers packaging.

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