39mm-67mm Circular Firecrest ND Filters (SuperSlim Stackable)

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39mm-67mm Circular Firecrest ND Filters (SuperSlim Stackable)

from 55.17

Firecrest ND is a revolutionary new type of ND filter from Formatt-Hitech. Rather than dyed resin, Firecrest is a rare earth metal coating used to create hyper neutral NDs. These circular ND filters are made from Schott Superwite glass and feature stackable 5.5mm SuperSlim rings. Firecrest ND filters are hydrophobic, anti-reflective and extremely flare resistant, which increases contrast and visual acuity in challenging lighting conditions.

Larger circular Firecrest ND filters are available here.

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Intro to Neutral Density

© Bart Heirweg

© Bart Heirweg

Neutral Density (ND) filters are the essential filters for digital photography and cinematography. ND filters reduce the amount of light entering the camera and allow the photographer to create the following effects:

  • Ethereal waterfalls and streams

  • Flat water effect in oceans and lakes

  • Streaky clouds

  • Motion blur in sports

  • Long exposures to remove people from public areas

  • Shallow depth of field using fast lenses wide-open

  • Adjusting aperture for cinematography 


 
 
© Jose Ramos

© Jose Ramos

Firecrest ND is a quantum leap improvement over all previous generation ND and IRND products and represents the technological state of the art in scientific light modification. These glass filters are hyper-neutral across the visible light spectrum and also remove more IR contamination than any other filter - making them IRND filters. 

Firecrest is a radical departure in how ND filters are manufactured. Previous generation NDs were made by dying resin. Firecrest is not a dying process, it is a rare earth metal coating process that is applied directly to the glass through an electrolytic process.

On rectangular filters, the Firecrest coating is sandwiched between the finest Schott Superwite optical glass, increasing scratch resistance and longevity. Firecrest reduces all spectrums of light (UV, visible, near infrared and infrared) almost perfectly evenly.


SuperSlim Ring

We manufacture our high quality aluminum rings to the most demanding tolerances, and these exceptionally slim rings minimize the chance of vignetting. SuperSlim rings are only 5.5mm thin and have threads for stacking. 


Independent Test Data

 

These graphs show test results from an independent test performed at The Academy of Motion Picture Arts and Sciences (AMPAS). The test measured the spectral power distribution of tungsten light reflected off a spectralon target made of barium sulfate using a Photo Research SpectraScan Model 705 spectroradiometer. The results were graphed according to their wavelength (in nanometers) along the X axis, versus radiance (in watts per steradian per meter squared) along the Y axis.

In the top graph, the yellow line represents the baseline tungsten light reading reflected off the barium sulfate target. This graph illustrates the excellent filtration properties of both the ProStop IRND (shown in green) and the Firecrest ND (shown in blue). Both filters appear nearly flat from this perspective.

 

The second graph emphasizes the differences between the two filters by removing the baseline tungsten reading and zooming-in on the Y axis. On closer inspection, the graph shows the ProStop IRND strongly attenuating the near-infrared spectrum before returning to neutral attenuation of the infrared spectrum around the 730nm mark. Firecrest (shown in blue) performs perfectly linearly in the visible light spectrum, before completely eliminating the infrared energy at around the 700nm mark. Compared to the ProStop IRND (which is the previous benchmark in IRND filtrations) the performance shown by Firecrest ND is nothing short of revolutionary. Firecrest ND truly is the future of ND filtration for digital sensors. Results in-the-field confirm the test data. The new Firecrest ND is amazingly neutral regardless of the camera make or model used.


Firecrest ND Filter Specs

© Robert Howell

© Robert Howell

  • These circular ND filters are made from Schott Superwite glass and feature stackable 5.5mm SuperSlim rings.
  • Circular Firecrest ND filters feature antireflective and hydrophobic multicoating. 
  • Firecrest filters are supplied in durable clamshell packaging. 

Densities Available

1 - 10 Stops | 13 Stops | 16 Stops

Kit Sets

1-3 stops | 4-6 stops | 7-10 stops.

2mm Filter Sizes

67x85mm | 85x85mm | 100x100mm | 150x150mm | 165x165mm

Circular Screw-in Sizes

39 | 46 | 49 | 52 | 58 | 62 | 67 | 72 | 77 | 82 | 95 | 105 | 127