The 46mm Formatt Hitech 46mm 6-Stop ND Filteris 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. 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: 2. does it work to photograph the sun and solar eclipses?

A: The Tiffen Solar ND Filter (58mm, 18-Stop, Special 50th Anniversary Edition) is for Solar Photography, Not Safe for Direct Viewing of the Sun. It is not ISO 12312-2 compliant and therefore not safe for direct viewing of the Sun. Always use approved ISO 12312-2 certified safety glasses when viewing the Sun directly.

Q: 3. If I’m shooting an eclipse event but not the sun/moon directly—just people—is this filter still needed to protect my gear?

A: This Solar Filter is used when you're shooting directly at the sun during the eclipse. This would be too dark to use for normal photography.

Q: 4. Is this Solar filter ISO 12312-2 certified?

A: Unfortunately, the Tiffen Solar ND Filter (95mm, 18-Stop, Special 50th Anniversary Edition) is not ISO 12312-2 certified. It should not be used to look directly at the sun with our eyes. It can be used for the camera to take a photo of the sun. Look only in the LCD live view to compose the photo. Do not look in an optical viewfinder.

Q: 5. 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: 6. Will this filter fit a canon zoom EFS 55-250mm (58mm)?

A: The Tiffen Solar ND Filter (55mm, 18-Stop, Special 50th Anniversary Edition) is too small for the Canon EF-S 55-250mm f/4-5.6 IS STM Lens. Instead, get the Tiffen Solar ND Filter (67mm, 18-Stop, Special 50th Anniversary Edition), BH #TI67ND54, and the Sensei 58-67mm Aluminum Step-Up Ring, BH #SESUR5867.

Q: 7. Hi! How can I tell if this will fit onto a Sony 4.5-6.3/55-210 Optical Steadyshot lens? Thank you so much in advance.

A: The Sony E 55-210mm f/4.5-6.3 OSS Lens (Black) has a front thread of 49mm. The Tiffen Solar ND Filter (77mm, 18-Stop, Special 50th Anniversary Edition) will be too large for this lens. Tiffen makes the Tiffen Solar ND Filter (49mm, 18-Stop, Special 50th Anniversary Edition). Please review this link to find the correct filter size: https://bhpho.to/3vpdzBY.

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. Is this filter ISO 12312-2:2015 compliant?

A: No, the Tiffen Solar ND Filter (67mm, 18-Stop, Special 50th Anniversary Edition) is not ISO 12312-2 compliant and therefore not safe for direct viewing of the Sun. The filter, like most on the market, will protect your camera and allows for safe solar photography only. It's advised that you still wear protective eyewear.

Q: 10. 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.