Zacuto Z-DRV Follow Focus The Zacuto Z-Drive is a unique, universal direct drive follow focus, designed with single operator shoulder mounted rigs in mind. Because it has a universal joint & no internal gears it can’t develop play. It attaches to a single 15mm diameter rod & curves away from the operator at a 60 degree angle creating space & distance from the lens for comfortable use when the camera is on your shoulder. This is the perfect follow focus for a Recoil kit set up (where the camera is directly over your shoulder) as it brings focus control further forward as well as down for comfortable operation. The Z-Drive can operate in four modes & is extremely adjustable for all size lenses. It can operate on the camera assistant or operators side of the rig positioned forward toward the lens or backward towards the tripod/dolly etc.. This makes for easy operation with a standard follow focus whip used on a tripod. The Z-Drive slides onto a single 15mm diameter rod (on the left or right of your camera) & tightens in place next to your lens with a Zacuto quick-release ratcheting red lever. It comes with a fixed 1 ¾” diameter. 8 pitch gear to connect to your lens. If your lenses are not pitched to. 8 or are not pitched at all (most DSLR & basic video camera lenses are not) you can add our Zipgear Universal to your lens so the teeth match our gear correctly for smooth rotation. The Zip Gears can be cut to fit the circumference of your lens & tightened with an Allen key. These Zip Gear straps are pitched to. 8 & are 13.5” long. The Z-Drive has a slender marking disc to create distance marks for repeatable focus pulls & a standard whip port. We recommend using the Z-Drive with our Tornado grip when working handheld. The Tornado attaches to the Z-Drive whip port & works in tandem with the Z-Drive to create a unique mechanical follow focus handgrip perfect for single operator shoulder mounted work. PLEASE NOTE: The Z-Drive is not compatible with matteboxes when working shoulder mounted.