I use this to connect my 60D to my laptop when I'm filming video for my blog so that I can see how bad I look and I can focus, etc. The only negative thing I have to say about this is that while the cable is HDMI the camera will only go standard def to the laptop or whatever device you're using. So for focusing and making sure everything is keyed in you should be good, if you need to view stuff in HD I think there are some apps for the camera you can get to update the firmware.