One of the filter frames is toothed for operation by turning knob or flexible shaft. At the rear of the filter stage there is a receptacle for 4 1/2″ filter rings and for an anti-reflection ring. For easy lens changing the matte box swings open 90°.
- Filter size 4″ x 4″ / round 4.5″
- Compact matte box for medium focal-length primes, 16 mm and HD zooms.
- Requires studio bridge plate or ARRI HD baseplate.