This Chrosziel mattebox with interchangeable filterstages covers focal lengths up to 4.5mm zoom lens or 5mm Canon/Fujinon prime lens.

Basic Unit Includes
Wide-angle housing covers 16:9/4:3 (AC-CLWAH-F4.8); includes french flag (AC-410-29)
Mounting blocks and pivot mechanism (for use with side wings available separately)

Swing-away bracket for mounting on 15mm lightweight support rods
Quick-lock device to interchange different filterstages
1st filterstage for one filterholder (non-rotating) 4×4/4×5.650 (AC-410-31)
Rear plate _ 142.5mm (AC-415-01-02) for use of different retaining rings

Each lens used with this matte box will have a specific doughnut ring. On ordering please state what lens you are using.