The EOS-M is a pocket rocket, shooting 1080p video with gorgeous Canon colour science at 25fps. The M is the perfect B-camera for the C100 and always comes through when you need to blend into your surroundings to
steal borrow a few discreet shots. For video essays, behind-the-scenes featurettes, and general run-and-gun shooting the M is a tough one to beat. If you need long shots, however, look elsewhere. Your recording time is capped at 29:59 thanks to some rather obsolete European tax regulations but the battery is so terrible on this camera that you might not even make it that far. The M is not for long interviews. That said, you can record decent audio using the Rode VideoMic that plugs into the 3.5mm jack on the camera body. Roll your own headphones.