The form factor is one of the things we're very excited for, says commodo. As long as you hve a back above it, you can put a nice smaller lens on it,. We've had this, or i've seen it on aronin s - which is a small hand held gambo. And since you can hot swap it, it doesn't matter as much. I love about shooting video to a very capable, mirriless camera, but now i can just keep it all red....