SHAPE Sony a7S Kit
The SHAPE 2-Stage 4 x 4" Matte Box accepts lenses with up to a 100mm front outside diameter. It mounts to 15mm LWS rods and utilizes a swing-away design, which lets you perform quick lens changes without having to remove the matte box from your rods. You can adjust the height of the matte box in relation to the rods, which comes in handy when your lens center to rod center height is slightly off from the standard.
Two rotating filter stages support the use of 4x4" filters. The matte box comes with a top flag (eyebrow), side flags, four matte box donuts in 66, 72, 82, and 90mm sizes, and elastic donut.