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Header image for article At the Bench: Formatt-Hitech Firecrest IRND Filters

At the Bench: Formatt-Hitech Firecrest IRND Filters

With today's modern camera sensors being so sensitive to light, we often have to use ND filters. Traditional ND filters are designed to neutrally reduce all light, but will not adequately cut the infrared or far red light that causes problems in many cameras.

Infrared pollution can make dark fabrics look red or magenta, which is not exactly a good look on a bright day. This is where (IR)ND, designed to cut light and also eliminate the infrared problem, comes in. There are many of these filters out today which do the job well; back in 2012, we even held an event where we demonstrated all of these filters. Now, Formatt-Hitech has a new IRND filter line called Firecrest. These IRNDs are special because the eliminate IR but keep the image neutral otherwise. Most IRNDs will alter the color of your image, but the Firecrest filters reduce light linearly in the visible light spectrum, before completely eliminating the infrared energy. In other words, they reduce IR but keep everything else basically the same.

In the video above, I show how these new filters perform on an old EX1 camera, but many cameras today can benefit from these filters, from the new Blackmagic cameras all the way to the RED Epic and Arri ALEXA. Firecrest filters are available in densities from .3 all the way to 3 (that's between 1 and 10 stops reduced), and they work well all the way through the range, so no need to stack filters. To learn more watch the video above, visit Formatt's website, and check out this White Paper with some independent test data from The Academy of Motion Picture Arts and Sciences (AMPAS).

Andy Shipsides


Intro image for article Using Sony's 2K Optical Low Pass Filter on the F5 and F55
Tutorials & Guides
Several months ago, Sony released a new user-changeable 2K optical low pass filter for their F5 and F55 cameras. The filters are incredibly easy to swap out by loosening just a single Philips screw in the upper right hand corner (yellow arrow in first picture above) of the filter. Simply slide the 4K filter to the right, and pull it away from the camera. The 2K filter then snaps right in, slides to the right, and is held in place with the same Philips screw.
Intro image for article AbelCine EXPO Highlight: Filters for Digital Cinema
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Intro image for article NAB 2013: Tiffen IRND Filters
Tech News
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