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 Kevin Kue

Great Product. Works well with all canon lenses. I'm using this adaptor on a m10 and it works flawlessly. The autofocus on the camera itself isn't very fastest even when using EF-M lenses, so I was skeptical with the purchase after reading some of the reviews. I don't notice any lag in focus speed using this adaptor on the m10. In fact, it improved preformance when I used my Sigma 50mm 2.8. I found this lens searching to focus on subjects unbearably slower on my 5D or Rebel T2i, but usinging it with this adaptor on my m10 is a dream. There is one downside. I did noticing in a few of my photos some sort of hazy light glare. This is usually found when I'm shooting sunrises/sunsets/ or brightly lit backgrounds. Yeah. I big bummer if you mainly shoot those subjects. It looks like a mild light leek that spans in the middle of the image.