Exhibiting improved clarity, flatness, and reduced reflectivity, this 82mm Firecrest Ultra ND for Solar Photography from Formatt Hitech is a neutral density filter providing a 24-stop reduction in exposure. This 7.2 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. Designed using inspiration from their cine Firecrest filters, these Ultra filters receive an additional lapping and polishing process during production to ensure lower reflectivity and improved clarity and sharpness.

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 to 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.

7.2 Optical Density    15-Layer Coating on Outside of Filter    SCHOTT Superwite Glass    SuperSlim 5.5mm-Thick, Stackable Ring    Hydrophobic and Scratch-Resistant    Darkens Entire Image    Neutral Results Across All Spectrums    Secondary Lapping and Polishing Process

The Firecrest Ultra series filters exhibit greater clarity and have lower reflectivity than the original Firecrest filters. Borrowing from the range of Firecrest cine filters, the Ultra series filters undergo a secondary lapping and polishing process after the initial polishing and bonding stage. This additional step helps to ensure flatness and consistency for improved image quality.

ND 7.2 filter darkens the image, allowing you to photograph with a longer shutter speed or wider aperture than normally required.

This filter provides a 24-stop exposure reduction, allowing 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 multi-coating is water- and scratch-resistance 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. Does it meet viewing specification for safety?

A: The Hoya 77mm ProND-100000 Neutral Density 5.0 Solar Filter (16.6 Stops) BH #HOND10000077 • MFR #XPD-77ND100000 will protect a cameras sensor but not the human eye: SAFETY FIRST: Observing the Sun without the proper protection may result in serious personal injury, including permanent eye damage and blindness, and/or damage to equipment. Never point an optic at the sun without an approved solar filter on the front of the optic. For direct solar viewing, viewing the sun through an optic, or when using cameras with an optical viewfinder, ensure your filter is ISO 12312-2 (also written as ISO 12312-2:2015) certified. Never use photographic neutral density filters for direct solar viewing, viewing the sun through an optic, or when using cameras with an optical viewfinder.

Q: 2. Could this be used for video? We are hoping to use a Canon XF105 to livestream the upcoming solar eclipse.

A: Yes, the NiSi Solar Filter Pro Nano UV/IR Cut ND100000 Filter can be used for video as well as photography.

Q: 3. How much reduction in UV and IR spectrum, respectively, is specified? I understand the reduction in visible light is 16.5 stops.

A: Unfortunately, Nisi does not specify how much of the IR and UV is reduced for NiSi Solar Filter Pro Nano UV/IR Cut ND100000 Filter (77mm, 16.5-Stop). They do state that the UV and IR cut is to offer a color neutral result. Therefore the UV and IR cut should not be relied upon for anything else other than offering an image that is color neutral.

Q: 4. Would this filter be good for shooting the moon and planets? Cut down the moons brightness and glare.

A: The Haida 77mm NanoPro One Million X Edition ND Filter (20 Stop) is a solar filter and it would be too dark for lunar use. A 2 stop filter is recommended for lunar photos: https://bhpho.to/48R3cVJ

Q: 5. So is this filter ISO 12312-2 (also written as ISO 12312-2:2015) certified?

A: Yes it is: https://hoyafilter.com/product/prond100000/

Q: 6. 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: 7. Does it fit Sony 200-600mm lens?

A: The sony 200-600 does take a 95mm filter the Hoya 95mm ProND-100000 Neutral Density 5.0 Solar Filter (16.6 Stops) BH #HOND10000095 • MFR #XPD-95ND100000 will work on the lens

Q: 8. What size filter will fit a Leica Ultravid 12x50 HD binoculars? Thanks.

A: The Leica Ultravid 12x50 HD do not have a standardized filter thread.

Q: 9. What color will the sun be orange or white ? The sample photos show both.

A: The NiSi Solar Filter Pro Nano UV/IR Cut ND100000 Filter (77mm, 16.5-Stop) will provide the most color-neutral results. The saturation of the color is based on post image editing and/or the brightness of the sun.

Q: 10. Hi there. I would like to know if filter Hoya 67mm Prond-100000 Densidad Neutra 5.0 Solar Filtro (16. Is ok for nikon P900 ???

A: Yes, the Hoya ProND-100000 Neutral Density 5.0 Solar Filter (67mm, 16.6-Stop) will work with a Nikon P900 camera.