Ideal for solar photography, this 4 x 5.65" Formatt Hitech Firecrest Ultra Cinema ND Filter 4x5.65 4-Stopfrom Formatt Hitech Firecrest Ultra Cinema ND Filter 4x5.65 4-Stopuses a rare earth mineral coating to create exceedingly neutral NDs. The filter is made from 4mm thick Schott Superwite glass, with a multicoating that is bonded in the middle to increase scratch resistance. Firecrest filters are neutral across all spectrums, including UV, visible, and infrared.

Firecrest Ultra IRND is a carbon-based filter with hyper-neutral color balance. It can be used for uniform near infrared filtration allowing your camera's color science to remain untouched. The Ultra IRND is equally compatible with ARRI, RED, Blackmagic Design, Canon, Panasonic, and other modern digital cinema cameras. This filter allows the image to be captured as the manufacturer intended.

4mm Cine Firecrest Ultra IRND have the same features as the popular 4mm Cine Firecrest ND. Firecrest Cine filters were renamed in 2019 to match the Ultra photography filters which received a new lap and polish manufacturing technique. For cinema sizes, the 4mm Firecrest ND were always lapped and polished where the 2mm photography versions were not. 4mm Firecrest ND and 4mm Firecrest Ultra IRND both have identical optical performance with the engraving being the only difference.

This filter is designed specifically for photography applications. This filter is not suitable for direct solar viewing with the naked eye, including with optical viewfinders.

For Solar Photography    1.2 Optical Density    Rare Earth Metal IRND Coating    4mm Schott Superwite Glass    Scratch and Water Resistant    Darkens Entire Image    Antireflective Edge Seal    Lap and Polish Manufacturing Technique

Related Questions and Answers

Q: 1. Does the variable ND drop in filter fit in the Canon ef -R 0.71 speed booster?

A: No, the Canon Mount Adapter EF-EOS R 0.71x (seen here: https://bhpho.to/3OmrCw5) does not accept the Canon Drop-in Variable ND Filter A.

Q: 2. Does this ND fader have circular or linear polarizing?

A: Hello David, we have used Circular Polarisers inside the ND Fader.

Q: 3. What is the difference between the Cinema FS ND filter and the Nano IRND filter besides the latter being a lot cheaper?

A: The NiSi Full Spectrum Cinema FS ND Filter (4 x 5.65", 1-Stop) is able to transmit light evenly throughout the entire spectrum of ultraviolet, visible light, and near-infrared wavelengths. As a result, this filter is able to produce perfect neutral colors and retain fine granular detail without compromising other aspects of optical performance. Additionally, this NiSi filter is ideal to reduce IR pollution and great for cameras that don't have an IR filter built in.

Q: 4. I have Nikon 16-35mm len. I heard someone indicated that this len may cause flare. Can I attach my 77mm len hood to my wide-angle len first and then attach this ND len on the wide-angle len???

A: Not really. The Eclipse should be attached to the Wide Angle lens and then attach the Fader Hood. The hood should reduce the chance of flare.

Q: 5. Does it fits a 4"x4" Matte Box from another brand?

A: Yes, the NiSi Cinema True Color 1-5 Stop Variable Neutral Density Filter for C5 Matte Box is made for the C5 Matte Box, which takes both 4x4 and 4x5.65" filters.

Q: 6. Is this a thin filter for use with a wide angle lens?

A: This is not classified as a thin filter.

Q: 7. HI All Will this filter and the 8x nd viginate on the canon 10-22mm lens? thanks Rich

A: You may experience vignette when stacking this filter with another ND filter on a wide angle lens.

Q: 8. does it let you know what stop its set at ?

A: It has reference marks.

Q: 9. Will this work with the Canon EF 800mm f/5.6 L IS USM lens?

A: Unfortunately the Canon Drop-In Variable ND Filter A (1.5-9 Stop) is not compatible with the 800mm lens. Currently there are no variable ND filter options for the 800mm RF f5.6 lens. You can use a solid ND 52mm using the holder that comes with the 800mm lens.

Q: 10. Can you stack a B+W circular polarizing filter in front of this ND filter?

A: It is possible, but highly not recommended.