The 46mm Formatt-Hitech Firecrest ND Filter is a solid neutral density filter providing a 6-stop reduction in exposure. This 1.8 density creates a darkening of the entire image, allowing you to photograph with a wider aperture or longer shutter speed than normally required. By slowing your exposure time or increasing your aperture, you are able to control depth of field and convey movement more easily.

The design of this filter 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. This filter provides 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 filter. The filter is set within a 5.5mm-thick SuperSlim aluminum filter ring, which features front threads for stacking additional filters or attaching a lens cap.

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.

1.8 Optical Density    15-Layer Coating on Outside of Filter    Hydrophobic and Scratch Resistant    Schott Superwite Glass    SuperSlim 5.5mm-Thick, Stackable Ring    Designed for Solar Photography    Increase Exposure Length    Greater Control Over Exposures    Neutral Results Across All Spectrums    Includes Pouch

ND 1.8 filter darkens the image, allowing you to photograph with a longer shutter speed or wider aperture than normally required.

Providing a 6-stop exposure reduction, this filter allows you to control depth of field and convey movement more easily.

Attenuates infrared light, as well as visible and UV wavelengths, to maintain color neutrality and suppress color casts due to increased exposure lengths.

The 15-layer Firecrest coating has been applied directly to the outside of the filter glass by way of a vacuum-formed, hard-coated, electrolytic process. The multicoating is water and scratch resistant for greater overall durability.

Schott Superwite glass promotes maintained image clarity and is set within a 5.5mm-thick SuperSlim aluminum filter ring.

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. What size lens cap would I need to go in front of this?

A: The Formatt Hitech 77mm Multistop Neutral Density Filter does not have front filter threads and will not accept a standard lens cap.

Q: 3. Will this filter block InfraRed light?

A: No, only a dedicated IR filter would work in this manner.

Q: 4. Do these filters come with individual pouches?

A: The filters are wrapped individual but they do not come with individual pouches for each one.

Q: 5. Does this have hard stops?

A: No.

Q: 6. Where can we buy a 0.3 filter? And also, how can we buy additional filter trays?

A: Unfortunately, we currently do not carry or special order the 0.3 / 1-stop filter (manufacturer code FCUCS4x5ND0.3) at the moment; the other Ultra Cine Superslim IRND filters are available as special order items through Firecrest. We do sell additional filter trays separately here: https://bhpho.to/3bvQXp1

Q: 7. Will these filters fit the Lee 100 system holder?

A: Yes, these filters will fit the Lee Foundation Kit.

Q: 8. Will This Formatt Hitech 6 x 6 clear filter fit a Lee SW150 filter holder?

A: Yes, this Formatt Hitech 6 x 6 Clear Filter is the correct dimensions to fit the LEE Filters SW150 Filter Holder at 6 x 6 (150 x 150 mm).

Q: 9. will these filters fit a Sinar filter holder? would be using on a large format camera with a Nikor 90mm and and Nikor 210mm lens.

A: If you have a Sinar 100 x 100mm filter holder, these filters can fit.

Q: 10. Will there be any color shifting in the image?

A: All ND's and particularly variable ND's can have some color shift, especially as you go darker. Since it depends on the camera, the lens, the f/stop, the light and the photographer, we cannot say for sure if you will experience color shift. Since Formatt Hitech is a well regarded company, it is our feeling that your time with the filter will likely be positive.