Revar Cine 2-8 Stop Variable ND for Matte Boxes

The Revar Cine Variable ND kit is a Variable ND solution that you can use in matte boxes. It makes for a compelling alternative to those who prefer to use a variable ND rather than fixed single stop filters in matte boxes.

To create the Variable ND system you use a combination of a linear and a circular polarizer. These two polarizer filters are claimed to be made out of the highest quality optical glass and anti-reflective coatings to create a 2-8 stop effect. They feature matched polarization foil that is claimed to minimize color shift.

Key features

  • 2 to 8 stops variable neutral density effect
  • High transmission broad band anti-reflective coated Schott B270 glass
  • Premium polarization foil
  • 1/4-20 threaded post for accessory mounting
  • Extra large 138mm glass for wide angle lens compatibility
  • Matched Polarizers for minimal color shift

Three Different Kits Available

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The first kit (Kit A) involves using two of your 4×5.65 matte box trays. You place the Revar Cine rectangular 4×5.65 polarizer in your existing 4×5.65 tray, and then you also use the Rota Tray 138mm geared circular rotating polarizer that comes housed in a 4×5.65 width tray. The rectangular filter remains fixed in place, and by adjusting the 138mm filter with the built-in dual gear design (0.8 pitch follow focus standard), you are able to adjust between 2 and 8 stops of light loss.

What you always need to be aware of when creating a variable ND system is that the circular polarizer needs to be at the back of your matte box, and the linear polarizer needs to be in front of that.

Kit B

The second kit (Kit B) is a solution that works for smaller matte boxes like the Bright Tangerine Misfit Atom Pola +, or for those using matte boxes where the 4×5.65 stages are already used up with filtration/ tray mounted diopters, making use of the spare 138mm tray in the rear. This kit is a great solution when using lighter matte boxes for Steadicam and gimbal work.

This same kit works equally as well with the new Bright Tangerine 2-stage ONE Tray as well as popular Arri LMB and MB with 4×5.65 and 138mm trays.

Variable ND Kit C

Kit C includes everything in Kit B plus the Bright Tangerine ONE Tray which is a single filter tray that takes 2 stages of your matte box at once.

Placing the 138mm Circular Polarizer in the rear rotating stage of the ONE Tray and the rectangular 4×5.65 filter in front, simply rotate the 138mm filter for a variable neutral density effect between 2-8 stops.

I reviewed the Bright Tangerine ONE Tray on the site recently. The ONE Tray for the Misfit Kick & ARRI LMB matte boxes can be used for Rota Pola, Variable ND, diopters, and other filters. The versatility of the ONE Tray allows it to hold an industry-standard 138mm round filter as well as a 4×5.65″.

What’s in the box: Kit A

  • 4×5.65 width Rota-Tray with 138mm Circular Polarizer
  • 4×5.65 Linear Polarizer
  • Storage Pouches

What’s in the box: Kit B

  • 138mm Circular Polarizer Pola+ 
  • 4×5.65 Linear Polarizer
  • Storage Pouches

What’s in the box: Kit C

  • Bright Tangerine ONE Tray
  • 138mm Circular Polarizer Pola+ 
  • 4×5.65 Linear Polarizer
  • Storage Pouches

Matte Box Compatibility

  • Kit A 2-Stage 4×5.65 matte boxes:
    • Bright Tangerine KICK and VIV series
    • Wooden Camera
    • Chrosziel
    • Arri MB and LMB 4×5.65
    • Shape* (longer 20mm tray screw required)
    • OConnor O-Box
  • Kit B 1-Stage 4×5.65 + 138mm holder matte boxes:
    • Bright Tangerine Atom + Pola, Clash 138
    • Bright Tangerine ONE Tray
    • Arri 4×5.65 LMB and MB with 138mm stage option, etc.
  • Kit C:
    • Bright Tangerine Misfit Kick
    • 2-Stage 4×5.65 Arri MB and LMB Matteboxes
  • Revar Cine products are not compatible with Tilta matte boxes due to non-standard tray width from Tilta

Price & Availability

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As I have already mentioned, the Revar Cine 2-8 Stop Variable ND for Matte Boxes come in three different kits. Here are the prices:

Bits and Pieces

If you already own a Rota-Tray or 4×5.65 Linear Polarizer and you just need extra components to make it work you can click on the links below for more info on each component of the systems:

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