$259 for a wireless lens follow focus from Lenzhound via their Kickstarter campaign featuring open source code. Would love to hear what it sounds like in action.
Simply slide the DB-1 Motor Unit onto your camera’s 15mm rod support system, slip on the lens belt, adjust tension and lock into place. (There’s a stretch-goal for 19mm rods too.) Plug in the battery and with a flip of a switch, you’re ready to go.
This system will work with virtually any DSLR lens with a manual lens ring on the market.
The Lenzhound, a super-affordable wireless follow focus system designed for independent filmmakers, consists of the handheld remote transmitter unit (RTX-1) and the motor/receiver unit (DB-1) which attaches to the user’s DSLR or video camera. The DB-1 lens motor is targeted towards DSLR and video cameras employing lenses with manual operation rings, but can be utilized with certain, heavier cinema lenses too. The system features open source, Arduino compatible firmware which enables a powerful array of user generated, optional settings. The Lenzhound System offers a flexible, wireless and user-friendly method of extending lens control to an assistant camera operator or “focus puller” enabling professional, cinematic filmmaking.
Please see the Lenzhound Kickstarter campaign for more on their wireless lens follow focus system.