Ideal for solar photography, this 6.6 x 6.6" Formatt Hitech Firecrest Ultra Cinema ND Filter 6.6x6.6" 2-Stopfrom Formatt Hitech Firecrest Ultra Cinema ND Filter 6.6x6.6" 2-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    0.6 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. Hello:I have one of these 3 x 3 filters being shipped. I want to use it for my Canon 14mm L lens - which has a rear filter holder. Do I just simply trim the 3 x 3 with scissors so it fits into the filter holder?Thanks - Tom Oristian

A: Yes, you would simply need to trim the filter to fit the slot on the back of the Canon 14mm.

Q: 2. Does this work with the Sony 14mm 1.8?

A: The Kodak 3 x 3" Neutral Density (ND) #96 2.0 Optical Gelatin Wratten 2 Filter can be cut to fit in the rear gel filter holder on the Sony FE 14mm f/1.8 GM Lens.

Q: 3. Does this have the option to not use any ND, while keeping the filter in the adapter to avoid dust seeping into the hole?

A: You will need to add this clear filter to the drop in filter slot in the Canon EF RF filter adapter. This filter will make sure no dust gets in the camera. https://www.bhphotovideo.com/c/product/1434115-REG/canon_3444c001_drop_in_clear_filter_a.html

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. What Filter Thickness is? 2 or 4 mm?

A: The Schneider 4 x 5.65" RHOdium Full Spectrum Neutral Density filters are 4mm thick.

Q: 6. I bought this VND for my sigma 16mm 1.4 lens , will it work with this lens??

A: Yes, the 67mm Urth N2-400 Variable ND filter will work with your Sigma 16mm f/1.4 lens. Due to the design of the filter front ring and the mounting style of your Sigma's bayonet hood, there might be some interference if you try to use the filter and lens hood at the same time.

Q: 7. Does anyone know the diameter of this filter's larger top area?

A: While the Urth ND2-400 (1-8.6 Stop) Variable ND Lens Filter (82mm) has filter threads that connect to 82mm filters, the manufacturer does not indicate the exterior diameter of this filter in their specifications.

Q: 8. can you add another B&W filter on top of this one?

A: Yes, although depending on your focal length you will start to see vignetting and potentially the edge of the filter in the corners of the frame. This will be especially true at wider angles and with more filters stacked.

Q: 9. How thin are these Wratten 2 filters compared to the original Eastman Kodak Wrattens?

A: This Kodak 3 x 3" Neutral Density (ND) #96 2.0 Optical Gelatin Wratten 2 Filter is very accurate, and more durable than the original Eastmen Kodak Wrattens.

Q: 10. Is this filter multi-coated?

A: Yes, the manufacturer has stated that the Urth ND2-400 (1-8.6 Stop) Variable ND Lens Filter (77mm) has an 8-layer nano coating.