Review on Fotodiox Pro Lens Mount Adapter With Auto-Exposure, Auto-Focus And Auto-Aperture, Canon EOS EF EFs Lens To EOS M EF-M Camera Body by Juan Mcallen

I purchased this because I've plenty of EF, and EF-S Canon lenses. Acquiring an M5, it was the perfect way to retain the functionality of those lenses. I received this adapter, and was impressed with how well it was put together. It fit the camera very nicely, and in truth it is not a complex item. Coupled with the fact that it is about 20% of the retail cost of the Canon adapter, it turned out to be a smart buy. The tripod mount is quite handy, and is very sturdy. When it connects to the M5, it is quite snug, and not loose at all. This adapter is a fairly simple item, but it works flawlessly with all of my Canon (and Sigma) lenses, and is stout enough to support my 70-300mm L lens as well. Everything focuses nicely. Finally, I do a lot of international travel, and try to keep my camera kit as compact as possible in my carryon. What is rather odd, is that TSA, and airline security in other countries, seem to have a fascination with the xray image of this particular adapter. I've had my bag opened, and rifled through to look at it on several occasions. I'm not really sure why, because on the monitor, it looks like a "donut". Just a circle of metal, with a blank space in the center (which is what it really is). Not a big problem, but a little annoying. I believe I'll rotate it 90 degrees, the next time I travel. No sense making the TSA's job harder than it has to be. :-)