It works nice, i modified it a bit yesterday and sits in camera + clicks into place like if it was made for canon M but i had to tile camera mount a bit, its not possible to unscrew camera mount cause 4 screws are glued with epoxy in factory, i had to cover sensor with solid circle i cut myself and used tape to prevent dirt getting into sensors lowpass filter, i lost warranty i think by doing that but i dont care that much cause i have second canon M on planet with speed booster , this is main reason i bought this camera, i even considered taking glass out from focal reducer and gluing them into macro tube for canon M , then gluing EF mount on top of macro tube. I had to file speed booster mount and then camera mount, i bought canon M macro rings first before i bought canon M cause i wanted to see if it will work.It works but unless you have nice set of tools to file down the mount teeth in camera a bit then dont get hopes up, it wont work if you tile only speed booster mount because lens mount on canon body have teeth a bit too long towards each other and wont let the speed booster through even if you will tile down all teeth from speed booster nex mount, i think photographers gave this camera bad opinion because autofocus is slow on electronic lenses, but its fantastic canon camera for video, you can mount any lens and sensor is so close its really different camera than everything canon released so far thanks to it, you can experiment with lenses a lot and convert them yourself.
Interesting fact is NEX body cap fits onto canon M.Mounts are very similar.
Its weird cause ive seen news about speed booster for canon M year ago in may 2013 and still nothing, how hard it can be to use different mount on it.
You can also mount canon EF kit lens on focal reducer and its wider than normal but you cant zoom out completly because vigneting starts from 24mm, but even then its wider than bare 18mm zoomed out and i like that.
Speed booster doesnt work that well with telephoto lenses, or maybe because i have old ones, there is shift in focal plane on sides and middle is sharp.
I think differently shaped glass is needed in speedbooster to work well with telephoto like 100mm or 200mm so its not soft on sides, its super sharp in the middle.
Works well with 50mm and it works best with wide lenses from 50mm down, my 24mm lens doesnt vignette with speed booster but canon's EF kit lens does on 24 and you can hide it by moving to 26mm , then its wider than my non kit 24mm which is weird cause it shouldnt be, yeah canon kit lens on speed booster is wider on 26mm than my other 24mm lens on speed booster.
Average performance on telephoto like 100mm might also be like that because i didnt used speed booster for 600$, i used focal reducer for about 100$.
Anyway im very happy that i did it because difference especially with shallow depth of field is really big between aps-c and full frame, wide lenses have quite a lot of bokeh when you frame someone from hip to top of the head, i wanted that on aps-c but fast lenses are expensive, here with focal reducer you can have that on f2.8 lens.
I dont know if this thread is good place to post pics, maybe its better to start new thread because people wont find the info im posting.
It would be nice if magic lantern for canon M could change shutter , iso or WB values if you press on the bottom on them with finger like with original canon overlay with shutter and iso, is there a way to put white balance icon there using original canon options from menu or something ?
I also wanted to try whats the maximum fps canon M can record at 720p using frame override but you cant do 60fps with it, in override menu it says 60 fps (from 30) like if it was in fullHD but its not and its not in 30fps, i picked 60fps 720p , dont know why it shows "from 30", should be "from 60" if in 720p mode i guess ?
