The iDC PhotoVideo System Zero Standard Follow-Focus with Viewfinder (for Canon 7D) is a versatile follow-focus system designed to lend cinema-like focus control to your DSLR videos. The system's gearless design means that, unlike most other DSLR follow-focus units, this one doesn't require the dedicated gears to match each lens you use. An adjustable focus wheel attaches to one of four dovetail slots on the sliding focusing plate, which in turn mounts to the dedicated base plate beneath the camera.
The base plate, designed expressly for the Canon 7D, can use any standard quick-release assembly for mounting onto a rig or tripod. It also accommodates iDC PhotoVideo's adapted Hoodman HoodLoupe, included, providing you with a larger viewfinder for even more precise focus. When not in use, the focusing wheel slides away from the lens and locks in place, or the combined baseplate/focusing plate/wheel can be removed as one piece (using an Allen wrench) for easy switching between video and stills shooting.
This Standard version works with most wide to short-telephoto lenses. For larger, mid-range telephoto lenses, the XL1 kit - with its longer focusing plate - is required.