The SYSTEM ZERO Follow-Focus XL1 Combo for Canon 5D Mark III from iDC Photo Video is a follow-focus kit that includes a top handle and tripod spacer that mounts as one unit onto a tripod.
The kit is for the 5D Mark III because the camera plate is 5D Mark III -specific. "XL1" means that the included focusing plate is the XL1 version with seven dovetail slots and a lens brace, as opposed to the shorter "standard" version with four slots and no brace. The difference between the two is that the longer XL plate can support longer telephoto lenses.
The focusing plate's dovetail slots are the connection points for the kit's components.
The focus wheel assembly slides into one of the seven slots of the focusing plate and tightens into place with a thumbscrew underneath the plate. The focus wheel is equipped with a replaceable, soft yet tough O-ring that presses against a lens and adjusts focus when the wheel is turned. The assembly has no gearbox and does not need lens gears making lens changes faster and easier. The kit is compatible with a long list of lenses (see Specifications tab) because the focusing plate has a fore and aft micro-adjustment for perfect alignment of the correct slot.
The accessory mounting bracket also slides into one of the focusing plate's dovetails and tightens by a thumbscrew. A grip handle and a tall cold shoe are attached to the top of the bracket, and together they provide a handle and a mount for accessories such as a shotgun mic or fill light. The shoe features a pin registration hole for Speedlites with locking pins. On the side of the bracket is another cold shoe and a quick-release clamp that accepts Arca-Swiss type plates. The bracket has many other mounting holes for the accessory mounts to be repositioned or for additional mounts to be attached.
Fastened to the bottom of the focusing plate is a spacer that allows the kit to be mounted onto a tripod quick-release plate. It provides one inch of clearance between the focusing plate and the tripod plate providing access to the thumbscrews. The spacer also allows the kit to be moved along a quick-release plate so it can be positioned to best distribute the weight on a tripod or monopod.
Lastly, the camera plate is also useful for adding viewfinders to the 5D Mark III. Two thumbscrews on the camera plate can hold the iDC-modified Hoodman Loupe or a Zacuto Zfinder Pro.
Eight components attach to a 5D III as a single unit.
A camera specific plate makes this kit 5D III-compatible.
The follow-focus assembly has no gearbox and no ring gears.
A spacer mounts the whole kit to an optional tripod quick-release plate.
The accessory bracket takes on shotgun mics, lights, and other accessories.
An iDC-modified quick-release viewfinder can be attached on via thumbscrews.
Slides into any of the seven focusing plate slots.
The focus wheel is equipped with an O-Ring for adjusting focus.
A gearless design lets lenses conveniently and quickly be swapped.
The seven-slot focusing plate for broad lens compatibility.
Accessory Mounting Bracket
Features a grip handle, two shoes, and a quick-release clamp.
The shoes each have one pin registration hole for Speedlites with locking pins.
The clamp accepts dovetailed adapter plates that conform to Arca-Swiss dimensions.
The bracket itself has many holes for shifting around and adding more accessory mounts.
In the Box
iDC Photo Video SYSTEM ZERO Follow-Focus XL1 Combo for Canon 5D Mark III
SYSTEM ZERO XL1 Follow-Focus for Canon 5D Mark III