Pros: Provides ALL functionality of larger Canon DSLR, mounts ALL Canon EF lenses (EF-M, EF-S, EF) with optional adapter, picture quality very high, movie quality very high, accepts Magic Lantern firmware, stereo microphone input, HDMI and USB output. USB output supports headphones (under Magic Lantern) and allows remote monitoring/control via Android tablet running DSLR controller (Beta)
Cons: Fast auto-focus requires light, do not expect auto-focus to work well in low light.
Pros: Excellent image quality for both still and video images. Many manual overrides, when desired, for the extensive auto functions and modes. Photo RAW; 2:3 format that is consistent with Canon's pro cameras. With 22mm lens it's a compact, light camera.
Cons: There is no effective rapid-fire of images as compared to G series or pro-sumer Canon camera bodies.
Excerpt: Just bought Raynox DCR-250 and tried to 22mm and 18-55mm on my lovely Canon EOS M. Here it is the picture taken from those lenses at closets distance. For better stabilities and precision I'm using macro focus rail. BTW the ruler is in cm. Sadly the result from 18-55mm has a little shadow at all of corners.
Excerpt: To put it simply, the EOS M gives you amazing pictures in the palm of your hand. The Canon EOS-M has the same internals as the Canon T4i : a 18Mpx sensor and a Digic 5 processor, while it is barely bigger than a Canon Powershot camera. I'm using it with pancake 22mm, which is sharp wide open and gives creamy lovely bokeh :D I had the camera new for about $300 which is a steal. If you can get it for a good price, I highly recommend it !
Conclusion: Excellent camera for travel. Sturdy and built to last. Focus is acceptable after firmware update. Great quality pictures. Write speed to sd card slow even when using UH-1 card. Needs firmware update to speed up write transfer speed. LCD screen easy to use.
Pros: Quick Start-up time, excellent image quality, Superior build quality, Bright LCD, Lightweight/Portable, Simple controls/menu, great for landscape pictures
Excerpt: The Canon EOS M was an interesting camera to research. There are a number of dated articles that talk about it's poor autofocus, and other quirks like no articulating screen, or screen blackout times. As I read on, and through the forums here and elsewhere, I came to find that for what I was looking for specifically this little camera would do it, and the image quality would be amazing.