The SEVENOAK SK-MB4 Matte Box is a professional-grade cinema accessory designed to fit virtually any production rig. Built with an all-metal aluminum construction and universal 15mm LWS rod clamp compatibility, it delivers robust flare control and light spillage prevention for video cameras, 35mm lens adapters, and motion picture film cameras alike.
Thanks to its swing-away design, the SK-MB4 allows for rapid lens changes without removing the entire matte box, making it a practical choice for fast-paced shoots. Included top and bottom flags plus adjustable side wings give cinematographers precise control over unwanted light, while rubber donuts ensure a snug, universal lens fit.
Key features
- Universal Compatibility: Fits small to large lenses via rubber donuts and a 15mm LWS rod clamp, working seamlessly with video cameras, 35mm adapters, and film cameras.
- Swing-Away Design: Quickly pivot the matte box aside for fast lens swaps without dismounting the entire rig, saving critical time on set.
- Complete Flare Control: Includes a top flag, bottom flag, and two side wings — all adjustable, lockable with locking hinges, or fully removable as needed.
- Widescreen Format Shade: Purpose-designed shade geometry optimised for widescreen cinematography to maximise light blocking across the frame.
- All-Metal Durability: Aluminum alloy body ensures long-lasting rigidity on professional rigs, while high-impact ABS plastic components keep overall weight manageable at 2.1 kg.
- Clean, Modular Build: Removable flags and wings allow you to configure the matte box to exactly what your scene demands, reducing bulk when full shading is unnecessary.
Specifications
| Mount / Rod System | 15mm LWS Rod Clamp |
|---|---|
| Lens Fit | Universal with rubber donuts |
| Materials | Aluminum body, high-impact ABS plastic (lens shade & adapter) |
| Design | Swing-away for rapid lens changes |
| Flags Included | Top flag, bottom flag, and a pair of side wings |
| Flag Adjustment | Adjustable, lockable, or removable with locking hinges |
| Format | Widescreen format shade |
| Weight | 4.63 lb / 2.1 kg |
Frequently asked questions
What rod system is the SEVENOAK SK-MB4 compatible with?
The SK-MB4 is designed for 15mm LWS (Lightweight Support) rod systems, which are among the most common standards used in DSLR and cinema rigs.
Can I use the SK-MB4 with different lens sizes?
Yes. The SK-MB4 is a universal matte box that accommodates lenses from small to large thanks to included rubber donuts that seal the gap between the matte box and lens barrel, preventing light leaks.
Are the flags removable, and can the matte box be swung away during shooting?
Absolutely. The top flag, bottom flag, and side wings can each be adjusted, locked via locking hinges, or fully removed. The swing-away design also lets you pivot the entire unit aside for quick lens changes without detaching it from the rods.










