Be cautioned if you have a 5D3.
ML is still very alpha for the Canon 5D3.
1. If you install Magic Lantern on your 5D3, you will set a firmware bootflag on the camera, that is NOT removable. At this time, it is a permanent change to your camera
2. It seems associated with this flag, that the boot times and wake up times can be significantly increased on your camera, I'm hearing up to like 2-3 seconds I believe. This is a deal breaker for some folks. This does NOT seem to be something that you can reverse.
The problems I mentioned above, will remain on your 5D Mark III even if you remove the Magic Lantern software. So, please be advised.
That being said, I've been following ML forums and all things about them and I'm HUGELY impressed. I really, really hope they can overcome these 2x issues with the 5D3 so I can feel comfortable with using ML on my camera. I'm anxious to start shooting RAW video with my 5D3...and to explore all these other cool options with stills photography.
But at this time, since I have only one 5D3, I am holding off putting ML on my camera.
Caveat Emptor as they say.
Also, ML doesn't run on the latest canon firmware version on the 5d3.
True, but as I understand it, even if you've moved to the latest Canon firmware, you can pretty readily "downgrade" to the version of the firmware that ML wants to use.
I am really ROOTING for the Magic Lantern team, I think they're doing an amazing job, and hope they keep making progress.
It is just that since the software is still in a pretty alpha stage for the 5D3 model, and it has problems that I'd mentioned with making permanent, irreversible changes on the 5D3, with the boot flag being set, and with the increased boot and wake times that seem to be associated with that boot flag.
As soon as these issues are addressed (or I hit the lottery and can afford a 2nd 5D3), I will wait till it is more to at least the beta stage before I try out Magic Lantern on my camera.