Canon sent me another check, so I feel obligated to publish some more EOS-M information (I'm kidding!) For those with a morbid curiosity, here is a poorly done video I did showing EOS-M AF speed with EF-M lenses, EF lenses, operation speed and shot-to-shot speed. IMO, the challenge for the M is more in the shot to shot speed than the AF speed. http://vimeo.com/81509180 <iframe src="//player.vimeo.com/video/81509180" width="500" height="281" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe> <p><a href="http://vimeo.com/81509180">EOS-M Speed Tests</a> from <a href="http://vimeo.com/user816419">W T</a> on <a href="https://vimeo.com">Vimeo</a>.</p> Also, I was thinking the M is kind of like my old EP1, but it certainly has a better sensor. Just for giggles, I compared the M sensor to both the EP1 (scored much better) and also to the Fuji X100, a highly respected APS-C sensor. Once you got past base ISO, the M and the X100 are pretty close! I can also see why (looking at the DR graph), the EP1 would turn so "crunchy" at higher ISO, and the EOS-M can still be managed to smooth output in post. Some DXO screen grabs from DXOMark below: Having said all this, I still can't get the Sony a7 out of my head, but I'd have to sell the 6D and all my EOS-M stuff to get it. Don't think I'm ready for that yet!