The Letus “Complete Kit” mattebox. It’s a full setup including the mattebox, 15mm rod clamp, French flag, side flags, adjustable eyebrow, filter tray, and your choice of lens clamp. An optional variable ND filter / color changer filter is available for use in the 138mm circular tray.

The Letus Matte box has been reportedly in development for over two years.

We’ve lost count of what generation we are on now it has evolved so much. We feel the end result is the most versatile and well thought out solution on the market today. About the only thing it won’t do is make your morning cup of coffee… but we may work on that feature too.


All aluminum parts are CNC machined out of high grade aluminum sourced from Switzerland
Resin parts are extreme durability polymers to withstand the rigors of production
3-4 stage matte box including the 138mm circular polarizer holder
Innovative ARF (Anti-reflection Tray) prevents light reflection into actors face when backlit
Matte box holds two (2) 4×5.65 filters at an angle or three (3) 4×5.65 filters straight
Includes a 138mm round filter tray for circular polarizer
Circular polarizer can be rotated via a small wheel at the top
Marking window on matte box to mark polarizer positions for easy repeatability
Pop-up filter spring to easily remove circular polarizer
Matte box is a light-weight clamp on design
Easily interchangeable lens clamps (80mm, 114mm, & more)
Rail mount is included for mounting matte box to 15mm support rods
Optional top and side flags and eyebrows available for fully kitting out the matte box
Optional lens clamps available for simple clamp-on functionality (highly recommended)


Letus Matte Box
4×5.6 anti-reflection filter tray (holds 1 or 2 filters at an angle)
15mm Rails Mount
French Flag
Side Flags (x2)
Adjustable Eyebrow
Lens Clamp (your choice of size)


138mm Polarizer/Color Temp Filter
Additional Lens clamps for clamp-on ability

This Matte Box was designed for out of the box use on Cinema lenses, we are developing accessories for it that will allow it to also be used on the SLR lenses.

See LetusDirect for more on the Letus Complete Kit Matte Box.

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