This 4 x 4" Firecrest Ultra Cinema ND Filter Kit 1 from Formatt Hitech includes ND 0.3, 0.6, and 0.9 filters, which offer 1-, 2-, and 3-stop exposure reduction, respectively. These filters use a rare earth mineral coating to result in extremely neutral NDs. They feature 4mm thick Schott Superwite glass, and the multi-coating is bonded in the middle to increase scratch resistance. Firecrest filters are neutral across all spectrums, including UV, visible, and infrared.

Rectangular ND Filters for Matte Boxes    0.3, 0.6, and 0.9 Optical Density    1, 2, and 3-Stop Exposure Reduction    Rare Earth Metal IRND Coating    4mm Thick Schott Superwite Glass

Related Questions and Answers

Q: 1. Can these filters be stacked on each other?

A: Yes, the filters on the NiSi Swift FS ND Filter Kit (82mm) can be stacked on each other.

Q: 2. Do these produce the most neutral in colors?

A: Yes these filter would produce the most neutral colors.

Q: 3. What is the strength for each lens? For example, if the wide lens is ND16, what reduction do the other two lenses receive?

A: The strength of the DJI ND Filter Kit for Mavic 3 Pro/Pro Cine is even across the wide angle and 3x zoom lenses; however, the 7x telephoto lens has a little less light reduction in order to ensure all three cameras remain evenly exposed. The manufacturer doesn't specify exactly how much the telephoto lens differs from the others.

Q: 4. What is the diameter of the round glass filter in millimeters?

A: The NiSi Cinema True Color 1-5 Stop Variable Neutral Density Filter for C5 Matte Box can be used with 95mm cinema lenses and lenses with filter threads up to 82mm.

Q: 5. Would you recommend this filter kit for use with the Canon 24mm TS-E lens?

A: The NiSi Swift FS ND Filter Kit (82mm) would complement the Canon TS-E 24mm f/3.5L II Tilt-Shift Lens (B&H # CA2435L2TSE) and the 82mm filter thread well.

Q: 6. What size would you recommend for the Nikkor Z 14-30mm f4 lens to use 2 filters stacked without vignetting?

A: The NiSi Swift FS ND Filter Kit (82mm) is not recommended when stacking filters on the Nikon NIKKOR Z 14-30mm f/4 S Lens. Nisi recommends this filter holder, BH #NIS6FHKSFT (https://bhpho.to/3O3Pt3g).

Q: 7. Hi Wanted to know Does it work to look at Sun . To check sun position?

A: No, it's not safe to use a 6 stop ND filter like the NiSi Cinema Variable ND Viewing Filter with Lanyard to directly view the sun, as ND filters are not made for a human eye, and would not protect your eyes properly from the sun's UV rays.

Q: 8. Does the wheel have stops indicators? Or do we have to guess what stop we are at.

A: The NiSi Cinema True Color 1-5 Stop Variable Neutral Density Filter for C5 Matte Box (1 to 5-Stop) does not have stop indicators.

Q: 9. Does the front of the filter has threat to attach a step up ring ? I'm planning to attach a 82-95 step up ring in front of this filter

A: Yes, each of the NiSi filters in this 82mm Circular ND filter kit have 82mm front threads for attaching other rings/filters.

Q: 10. What is the weight in grams of the filter itself (without magnetic lens cover)?

A: The Freewell 82mm All-day Variable ND filter weighs 71 g without the lens cap.