Just as important as your visual effects are your audio effects. Sound mixing, dialogue, narration, and music all come together to create the audio that’s heard when your video is watched. Even just adding a layer of ambient sound over a quiet scene can make the difference between what feels like a high-quality video and a low-quality one. Make sure a professional handles your audio mixing, so you have the perfect sound levels, foley effects, dialogue volume, and more.
Professional cameras, like DSLRs, give you fine control over the manual settings of shooting video and allow you to achieve the shallow depth of field (background out of focus) that people rave about. While they're primarily used for photography, DSLRs are incredibly small, work great in low light situations, and pair with a wide range of lenses — making them perfect for video. However, DSLRs do require some training (and additional purchases) of lenses.