The 46mm Formatt Hitech 46mm Firecrest ND Filter 3-Stopis a solid neutral density filter providing a 3-stop reduction in exposure. This 0.9 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.

0.9 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 0.9 filter darkens the image, allowing you to photograph with a longer shutter speed or wider aperture than normally required.

Providing a 3-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. This item has a warning on it stating that it is not safe for solar photography or viewing the sun. Is it suitable or not?

A: The warning, is meant for viewing. The filter does not protect the eyes from harmful light of the sun. So use the back of the Screen of your camera or a mirrorless camera.

Q: 2. Does this filter also act as a UV/IR cut filter? Would it be beneficial to get a separate UV/IR cut filter as well?

A: The Tiffen Solar ND Filter (67mm, 18-Stop, Special 50th Anniversary Edition) does not cut UV or IR light.

Q: 3. Will this fit the Canon EF 75-300mm f/4-5.6 III Lens?

A: Yes, the Tiffen Solar ND Filter (58mm, 18-Stop, Special 50th Anniversary Edition) will fit the Canon EF 75-300mm f/4-5.6 III Lens.

Q: 4. 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: 5. Pls confirm that the 46mm filter will fit in the rear drop-in slot of a Nikon Z 800mm? i.e. it's not too thick

A: The Tiffen Solar ND Filter (46mm, 18-Stop, Special 50th Anniversary Edition) is incompatible with the Nikon NIKKOR Z 800mm f/6.3 VR S Lens. Solar filters must be on the front of the lens to be safe. Get the MrStarGuy Adjustable Objective White Light Solar Filter (145-175mm OD), BH #STSGFT043B.

Q: 6. Will this fit a Nikon drop-in holder?

A: Unfortunately, solar filters are not to be used in a drop in holder. The lens will get too hot when pointed at the sun and the aperture blade may melt. The solar filter needs to be placed on the front of the lens.

Q: 7. Is the Tiffen solar ND, 18-stop filter (P/N TI77ND54) a true neutral density filter, or does it give an orange tint?

A: The Tiffen Solar ND Filter (77mm, 18-Stop, Special 50th Anniversary Edition) is a true neutral filter and doesn't give an orange tint.

Q: 8. Would this be considered a 52mm drop in filter for Nikon lens?

A: The Tiffen Solar ND Filter (52mm, 18-Stop, Special 50th Anniversary Edition) is too thick to work as a drop-in filter.

Q: 9. Would the 40.5mm version of this 18-stop solar filter be compatible with my Sony 600GM's drop-in filter system? Thanks!

A: Yes, the Tiffen Solar ND Filter (40.5mm, 18-Stop, Special 50th Anniversary Edition) can be used as a drop-in filter for the Sony FE 600mm f/4 GM OSS Lens.

Q: 10. Is this filter suitable for the upcoming eclipse 10/14/23?

A: The Tiffen Solar ND Filter (95mm, 18-Stop, Special 50th Anniversary Edition) (B&H# TI95CND54) is absolutely suitable for photographing any annular solar eclipse such as the one on October 14, 2023 (and future such annular solar eclipses), as well as any total solar eclipse such as the one on April 8, 2024 -- and later ones, too, in 2026, 2028, etc. As with any similar photography (rather than optical viewing) style filter, the image would then be viewed using electronic means such as in digital live view mode when using a DSLR (rather than using the optical viewfinder) or with any mirrorless camera using its digital viewfinder or rear digital screen.