Genustech Side Flags for PV / GWMC Matte Box

A matte box's top flag only shields the lens from overhead light; a source off to the side still gets through, and this pair of side flags is the fix across three Genustech matte box lines: PV, GWMC, and Matte Box Lite. They mount to the box and cut light from the left and right independently of the top flag.

Because the same flags fit all three systems, one part number covers a shop running mixed matte box models.