This 85 x 85mm Firecrest ND Filter for Solar Photography 85mmis a solid neutral density filter providing a 2-stop reduction in exposure. This 0.6 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. It measures 3.3 x 3.3" / 85 x 85mm and is 0.08" / 2mm-thick, making it compatible with the Formatt Hitech 85mm Filter Holder.

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.

0.6 Optical Density    15-Layer Coating on Outside of Filter    Hydrophobic and Scratch Resistant    2mm-Thick SCHOTT Superwite Glass    Increase Exposure Length    Greater Control Over Exposures    Neutral Results Across All Spectrums    Fits Formatt Hitech 85mm Filter Holder    Includes Pouch

ND 0.6 filter darkens the image, allowing you to photograph with a longer shutter speed or wider aperture than normally required.

Providing a 2 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 its 2mm-thick design is compatible with the Formatt Hitech 85mm Filter Holder.

Related Questions and Answers

Q: 1. Hello, given that this product's filter factor is 1,000,000; does this imply ND20 and is this appropriate for solar photography?(e.g solar eclipse) the price seems fairly low for such high filtering power.

A: Yup! Indeed, this is a 20-stop filter. Perfect for solar photography!

Q: 2. 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.

Q: 3. Is this intended for solar shooting?

A: The Haida 77mm NanoPro One Million X Edition Filter is a 20 stop filter and any filter over 16 stops is safe for solar use.

Q: 4. Will this fit in my Canon 600mm prime as a drop in filter?

A: Yes, the Tiffen Solar ND Filter (52mm, 18-Stop, Special 50th Anniversary Edition) will fit into the drop in filter of the Canon 600mm f4L.

Q: 5. What is the weight of this filter?

A: I dont know.

Q: 6. 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: 7. Is this filter a discontinued model? Nobody else has it at this price.

A: As far as I know it is not however, due to the Eclipse event this year, it took about 3 months to arrive. Well worth the wait though, I love it. I have 2 of these, one is a 13 stop and the other is a 16 stop filter. Both top notch quality and you can't beat the price on this site.

Q: 8. Is this filter safe for solar eclipse photography?

A: Haida 95mm NanoPro One Million X Edition ND Filter (20 Stop) BH #HAHD460795 is not rated for solar photography no.

Q: 9. is this the same as firecrest irnd filter? I have firecrest irnd filter now and is looking for another one.

A: This filter is an IRND filter from the Firecrest Series.

Q: 10. If I’m shooting an eclipse event but not the sun/moon itself—just people—is this filter still necessary to protect my gear?

A: If you are not taking photos of the sun then you don't need a solar filter.