If you have an M mount camera, this adapter lets you use the hundreds of Canon lens models made since the late 1980's, many very reasonably priced. The Canon adapter maintains the quick focus of the camera, and was selling at a steep discount on Amazon.

I purchased this adapter since the Canon version was unavailable at the time. I was impressed with the solid build and so far it does the job well with most of my lenses. I did see some vignetting on the corners when testing with my EPS 55-250 mm kit lens at full extension but everything worked well with my 70-200 mm lens even with the 2x extender attached. Macro extension tubes also worked with any issue. The tripod mount seems like a useless appendage so I made that disappear as soon as it came out of the box. Considering that that the price line was about 34% less than the Canon version, I am very happy.

Works flawlessly - using a Minolta MD to Sony Nex adapter.Fit is perfect, and the adapter comes off the body with ease - same with removing lens from adapter.This adapter has allowed me to use all of my old MD/MC lenses instead of letting them sit around for the occasion when I haul out my X-700.

So you finally decided on getting the EOS M (it's flaws considered). I assume you are a canon user, have a couple of good (canon EF/EF-S mount) lens lying around and would like to be able to use those on you EOS M. Just like me, you love your canon dslr but sometimes wish you can travel light but still be able to enjoy the canon ecosystem that you have grown to love. If you are what I assume you are, get this lens adapter.I took a gamble and bought a "like-new" used from a seller at Amazon and was very happy with a purchase. For anything more than $150 I probably would think twice. But I am not taking a start out because of the price. This adapter handles every canon mount lens I threw at it. The build quality is nice. The design (the way it attaches to the eos m; the included, detachable tripod mount) is well thought of... just perfect.

Great replacement, fits my Nex just like the original lens cap I lost.

Lost my original lens cap for my NEX-6 and this replacement is basically the exact duplicate.

The lens cap keepers are just as described. They fit perfectly on my Sony NEX-5T and my sister's Canon DSLR. I purchased the set of 5 keepers, so I will never be without one! The quality of this product is top notch!

Great adapter, must have. Can't beat the price and works perfect. Allows you to use way more lens on your ef-m mount camera.