Just put it on my Canon SX110is and I must say in the first hour... its confusing but I can shoot in RAW! overall I am pretty happy. When i start the camera up it says there is a zoom lens error... but it "forgets" about that once you hit the shutter release haha then its all fine and works great. I LOVE having the battery meter too! much better than the "its dead" blinking icon Canon gives you! haha I feel that shooting in RAW and not using too many of the other features will keep me pretty safe and not put too much stress on the camera. just thought I would share how happy I am. anyone else use the CHDK?