Had my EOS-M out last night for some street shooting. I was really happy with the camera and results (that I could see on the screen) until I got home and loaded the SD card...and it was unreadable
I tried multiple photo recovery programs while testing the M with other SD cards. The photos could not be recovered, and I couldn't reproduce the issue. At first I was afraid there was a camera issue, but now I'm thinking it was the card. Everything (Mac/Win/disk utilities) reports a much smaller capacity for the card then should be available (i.e. <4 GB and it's an 8 GB card) and it's not a partition issue. In retrospect I should have caught this when I first put that card in the camera. Before changing from RAW to JPEG I remember thinking "that's all the RAWs this can hold?"
It was an older no-name card I had lying around, something a relative handed me over a year ago after upgrading to a bigger card. What was I thinking?
My M now has a SanDisk Extreme 16 GB. It better live up to their reputation.
Impressions from the night of shooting?
* AF is actually usable for most street, but...this camera would be a lot better in this respect if we could move AF to the record button (the exp. comp. button is not a good place) and if we had focus peaking. I also wish we had a "tap to focus" option in addition to "tap to shoot". I don't want AF to have anything to do with the shutter.
* MF throw is way too long. This is electronically coupled and can be anything Canon sets.
* I love being able to touch select focus points.
* With the 22mm I'm able to hand hold down to 1/10s even though I can't hold it like a DSLR.
* I feel comfortable to ISO 6400.
* I left +1/3 exp. comp. practically the entire time.
* Definitely does not draw the attention of a DSLR.
* The touch screen has one major issue: it acts on its own while rubbing against your shirt. Even got a shot thanks to this
(too bad it's gone). By the end of the night I found myself turning the camera off and/or hitting play. The latter prevents setting changes and lets the screen timeout, but the camera is still on and ready to shoot. I wish there was a "sleep screen" button or icon on the screen.
* Being used to SLRs I hate the relatively long blackout time.
I realize this probably isn't going to happen, but if Canon addressed the first points it would literally move the camera up a class for me.