This 4 x 5.65" Cine ND Filter from SmallRig is an ND0.3 neutral density filter that produces a 1 f-stop exposure reduction, making it possible to reduce shutter speed for added blur when shooting still images, or for finer control over frame rate when shooting video. In addition, shooting at a wider aperture to reduce depth of field helps isolate the image subject from the background. This filter is compatible with any 4 x 5.65" matte box or filter holder that has a filter slot for 4mm-thick filters.

Made with high-clarity, high-transmission B270 optical glass, this filter is precisely ground and polished for use with lenses of various focal lengths without compromising image sharpness. The filter is coated on both sides with multilayer nano-coating to reduce lens flare and optimize light transmission. The coatings are also mildewproof and water resistant, toughened to prevent stains, and easy to clean, making the filter ideal for use in harsh environments.

0.3 Optical Density    Multilayer Nano Coating    4mm Thick Schott B270 Optical Glass    Waterproof and Oil-Resistant Coating    Compatible with 4 x 5.65" Matte Boxes    Darkens Entire Image Area    Allows Reduced Shutter Speed    Allows Wider Aperture

• Compatible with 4 x 5.65" matte box systems
• 4mm thick
• For still photography and video applications
• Double-sided multilayer nano-coating
• SCHOTT B270 optical glass construction
• Waterproof and oil-resistant coating
• High-accuracy color reproduction

Related Questions and Answers

Q: 1. Can one Circular Pola be removed and this be used as a circular pola as well as a VND (when both polas are present)?

A: To use the SmallRig VND Filter Set for Star-Trail and Revo-Arcane Matte Boxes as a variable ND you need both polarizing filters.

Q: 2. Is this fully compatible with the Bright Tangerine Misfit Kick clamp-on matte box?

A: Yes, the Revar Cine Rota Pola Rota-Tray 4 x 5.65" with Circular Polarizer would be compatible with Bright Tangerine, ARRI, Vocas, Chrosziel, O’Connor O-Box, and many other matte boxes on the market today. It is not compatible with RedRock Micro matte boxes.

Q: 3. Will the variable ND be affected if the linear polariser is NOT perpendicular to the circular one? (I.e the linear Pol is positioned on a tilt as is the case with the Bright Tangerine Misfit Atom Pola+ tilt adaptor). Thanks!

A: Yes positioning the filter at an angle will affect your results.

Q: 4. Will this tray fit a tiffen pola with 6mm thickness?

A: No, it cannot take a filter that is as thick as it is. The Rota-Pola will take a unmounted 138mm filter with the dimensions of 5.236 (132.994mm)+/-0.010 diameter and 0.135(3.42900mm )+/- 0.005 thickness.

Q: 5. Will these filters work with Smallrig's Mini Matte boxes (the older models)? If not what VNDs would work with those matte boxes?

A: No, the SmallRig VND Filter Set for Star-Trail and Revo-Arcane Matte Boxes is designed specifically for the Star-Trail and Revo-Arcane Matte Boxes. There does not appear to be a VND for the SmallRig Mini Matte Box but you may be able to use a circular VND with the matte box.

Q: 6. Does the Schneider 138mm Diopter Split lens fit in?

A: The Alan Gordon Enterprises Revar Cine Rota-Pola Tray for 4 x 5.65" Matte Boxes accepts only unmounted 138mm filters. All known 138mm diopters are mounted.

Q: 7. Will this fit the Tilta MB-T12 Matte Box?

A: The Revar Cine 4 x 5.65 Double Tray for 138mm Close-Up Diopter should fit in the Tilta MB-T12 Matte Box.

Q: 8. Is this compatible with a Wooden Camera UMB-1?

A: Yes. The following unit will adapt to the wooden camera UMB-1. Please be mindful that the filter holder will not work with both Redrock micro and Tilta matte boxes.

Q: 9. Is this compatible with ARRI LMB-25 Mattebox?

A: Yes, the Revar Cine 4 x 5.65 138mm Variable ND Kit A with Rota Pola Rota-Tray is compatible with all Arri standard matte boxes including Bright Tangerine, Arri, Chrosziel, Wooden Camera, and many others.

Q: 10. Will this work with the wooden camera UMB-1 clamp on mattebox?

A: Yes, this should work well with BH #WO201900.