Correct lens height is important when using large diameter cinema lenses like the Angénieux Optimo Style 25-250mm and rod mounted matte boxes.

The Booster Seat simplifies your build and avoids having to stack an ARRI MAP-2 and BPA-4 spacer.

Four M4 x 12mm socket head cap screws mount the Booster Seat to KEYSTONE for a firm, anti-twist connection.

If you’re using our Power Breakout, there’s two positions with M4 mounting holes. One at the front, the other at the back.

The Booster Seat is compatible with the Freefly MōVI XL 19mm Camera Plate, as well as other industry standard 15mm and 19mm studio bridge plates. Examples listed below.

Last but not least! Booster Seat is also compatible with ARRI ALEXA Mini and Mini LF.

Designed and manufactured in Tasmania, Australia.