There's an application for Android called DSLR Controller:
Rather than being based on the Canon SDK I'd guess (but am not sure) it would be based on the libgphoto2 library. Unfortunately my Droid phone doesn't support USB host or OTG so I haven't been able to give it a try, but it does work on some of the Galaxy tablets for example.
Saw that, sounds very promising, but is it a ported niche product (non-mass)? Since I have not heard a lot about it except for that one youtube video. If it was robust enough, it could have caused many photograpgers to move to Android... I would think. Has it happened? Is the app beta or final? I know too many questions... but have you used it yet?
Saw this thread, signed up and then promptly forgot all about it. Duh.
Anyhow, I've got an Asus Transformer tablet and have this app. It cost me all of £5 for a beta copy.
Yes it is still in Beta at the moment, I admittedly haven't used it a huge amount and it probably works better for studio/still life stuff (which I don't really do a lot of at the moment) because the USB connection isn't the tightest and has a tendency to work loose if you move it about a lot, not the apps fault more an Asus design flaw.
The app is good though, seems to everything I've asked it to do. Crashes are minimal although it hated me trying to use video with it and didn't really like it when the camera went to sleep, this could have been fixed in one of the many (read: 4 or 5) updates since I last used it I should add that video isn't supported by the app but thought I'd try it anyway.
This app is one a few apps that offer this function after having a quick look on the Android Market, although when I bought DSLR Controller it was the only true direct connecting app. The others involved WiFi and another laptop surely making the tablet surplus to requirement anyway?!.
Updates are frequent, every time I check for app updates, it is always there in the update list.
The app is essentially a lot like using the EOS Utility but with a touch screen which I quite like, it feels natural to jab the screen and change shutter speed and aperture this way. IMO this app is easier to navigate around than the EOS Utility.
Focusing is nice with a couple of options:
- An automatic mode where you drag a box around then tap where you want it to focus, a lot like standard Live View focusing.
- A manual mode of sorts where you pick a point with a box again and can then adjust the focus with 6 buttons in total. 3 buttons to focus in and 3 to focus out. Each of the 3 buttons does a slightly smaller increment than the last so enables quite small adjustments to be made, although it does take a while to master this mode.
Official website http://dslrcontroller.com/
which has all the features on it because I can't really remember any of them and I don't have the tablet at work with me.
Hope that makes sense.