The 165 x 200mm Formatt Hitech Firecrest ND Filter Kit 165x200mmcontains 4 Firecrest graduated ND filters, ranging in density from 0.3 to 1.2 to provide a selective reduction in exposure from 1 to 4 stops. Graduated neutral density filters help to darken specific areas of an image, such as bright skies, while allowing for a normal, unaffected exposure in other regions of the image. The ND effect is densest at the edge and taper to clear by the middle, with a soft-edged line of transition between the density and the clear areas. These filters are designed to be used in the vertical orientation as the line of transition runs parallel to the short side of the filter.

The design of these filters has been optimized for use with digital sensors and promote nearly flat attenuation of visible, UV, and infrared light. Due to imaging sensors' greater susceptibility to infrared light, compared to traditional film, color casts can occur when photographing darker subjects that require increased exposure times. These filters provide a high level of neutrality across all three spectrums in order to eliminate color casts and ensure cleaner, truer blacks.

Applied to the outside of the Schott Superwite glass construction is a 15-layer Firecrest multicoating, which helps to minimize reflections and flare in order maintain truer colors and contrast. The multicoating is also scratch-resistant and hydrophobic to benefit the overall durability of the filters. Each filter in this kit measures 6.5 x 7.9" / 165 x 200mm and is 2mm thick, making it compatible with the Lucroit 165mm Filter Holder.

Includes 4 Firecrest Grad ND Filters    0.3 to 1.2 Optical Density 1 to 4 Stops    15-Layer Coating on Outside of Filter    Hydrophobic and Scratch Resistant    2mm-Thick Schott Superwite Glass    Reduce Exposure in Selective Areas    Soft-Edge Vertical Grad    Neutral Results Across All Spectrums    Fits Lucroit 165mm Filter Holder

Related Questions and Answers

Q: 1. Do they fit the SmallRig's Lightweight Carbon Fiber Matte Box?

A: Yes, those filters should work in the SmallRig Lightweight Carbon Fiber Matte Box.

Q: 2. Does this filter have front filter threads? The item listing says this is a stackable filter. I have the 77mm variant and it does have front threads.

A: No front filter threads

Q: 3. Purchased FirecrestUltra 100x100mm ND 3.0 filter. It came with some self sticking foam gasket in separate bag. There are no instructions how to install the gasket.Question: which side of the filter should the gasket be installed on? One side of the filter has writing on.

A: Put the gasket on the side that does NOT have the writing.

Q: 4. What comes with this kit to store and protect these filters? Do they have individual pouches, or an accordion pouch, or are they just bare and you have to buy pouches for them as an extra purchase?

A: There are no protective pouches or cases included with the Formatt Hitech Firecrest Ultra Cine Superslim IRND 3 Filter Kit.

Q: 5. I just watched a video on YouTube where the gent says there are NO filter threads inside but the specs here list that there are?

A: I contacted Formatt-Hitech with your inquiry. They state that the Formatt Hitech 77mm Firecrest SuperSlim Circular Polarizer Filter, B&H # FOFCSSCP77, has 77mm front filter threads. They state you may stack multiple threaded filters onto each other as long as they all have the same 77mm filter thread diameter size.

Q: 6. It says usually ships in 2 to 3 days, also says out of stock. will it shop in 2 to 3 days or not?

A: Add the item to the cart online to calculate shipping to your address. For up to date stock questions you can email sales@bhphoto.com

Q: 7. My filter's lens rattles between the ring, which feels plastic. Anyone else? Suspect fake. Did not purchase from B&H.

A: Mine fits well. Good solid fit. No problems at all. It turns about 3/4 when tightening on Canon lenses. Purchased from B&H.

Q: 8. An 82mm filter with a 39mm front thread? Amazing! How did they do that? It sure doesn't look like that in the photos.

A: Quite frankly, I have no idea. I purchased the 67mm diamater UV filter. It has 67mm male threads on the lens facing side and 67mm female threads facing out.While B&H does an excellent job of thousands of product descriptions, occasionally a typo (either theirs or the manufacturers) does make it into an online product description.If you have questions as to the suitability of any of their products, do take advantage of their chat function. I have and find they really know their stuff and they stayed with me until my questions were answered.

Q: 9. what is the thread pitch for this filter?

A: The Formatt Hitech SuperSlim filters are 5.5mm thin.

Q: 10. Does this filter have front threads for attaching additional filters?

A: Formatt Hitech 95mm Firecrest SuperSlim Circular Polarizer Filter BH #FOFCSSCP95 has front threads for attaching additional filters.