Camera And Lens Installation - Preston FI + Z Manual

Step-up gears are provided to allow the DM-1, and DM-2 motors to drive Panavision Zoom and
Iris gears as well as the Focus, Iris, and Zoom gears of Canon and Fujinon video lenses. Please
consult our price list for a complete list of available gears.
The FI+Z system includes bracket kits to provide robust support when used in conjunction with
industry standard cameras. These brackets have been designed to for maximum rigidity and
lens positioning accuracy.
4301
1.15mm Arri rod system. When the FI+Z motors are installed on a camera equipped with 15mm
matte box support rods, an Arriflex Bridge adapter is required. This adapter slides over the rods,
and has two integral 19mm bushings over which the motor swing arms are installed. The
adapter provides very rigid mounting points for the motor, and prevents motor torque from
twisting the rods.
Once the 15mm rods are stabilized by the Arriflex Bridge adapter (p/n 4304), a third motor may
be installed on the 15mm rods using the 19mm motor swing arm and a 15mm/19mm adapter
bushing. In addition, a 19mm rod adapter is provided for use with the Arri handle.
The 19mm Arriflex rods are very rigid and don't require a bridge.
2. The Panavision Bridge adapter (p/n 4311) slides over the .625" matte box support rods, and
includes a pair of 19mm bushings for mounting the motor swing arms. Swing arms are provided
for use with the upper and lower rod. A bushing adapter is provided to allow the 19mm swing
arm to clamp to the .625" rod.
The motor output gears are .80m. They are available in .25" and .50" face widths. All gears are
designed to accept "step-up" gears installed over the normal output gears. These step up gears
VI. CAMERA & LENS INSTALLATION
4333
4304 15mm Arri Bridge
4311 Panavision Bridge
Fig.7 Motor Brackets
4302
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