This 77mm Tiffen Water White Glass NATural IRND Filter is a neutral density filter with a 128x filter factor that provides a 7-stop exposure reduction. Its 2.1 density creates a darkening of the entire image, allowing you to photograph with a wider aperture or slower shutter speed than normally required. By increasing your aperture or slowing your exposure time, you are able to control depth of field and convey movement more easily. Neutral density filters are intended to not affect the coloration of the image and are ideal for pairing with other filters.

The design of this filter has been optimized for use with digital sensors and to promote nearly flat attenuation of visible light 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 is noncoated, is constructed from Water White glass for increased clarity, and features an aluminum-alloy filter ring for durability while remaining lightweight. It is made using ColorCore technology, a process that involves laminating the filter substrate between two pieces of optical glass and grinding flat to a tolerance of 1/10,000th of an inch.

2.1 Optical Density    Noncoated Water White Glass Construction    Aluminum-Alloy Filter Ring    77mm Front Filter Threads    Darkens Entire Image    Allows Reduced Shutter Speed    Allows Wider Aperture    Neutral Results, Visible, & IR Spectrums

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

Providing a 7-stop exposure reduction, this filter allows you to control depth of field and convey movement more easily.

Attenuates infrared light to maintain color neutrality and suppress color casts due to increased exposure lengths.

Filter does not affect coloration of the image and is ideal for use with other filters.

Constructed from Water White glass for increased optical clarity.

Noncoated.

Aluminum-alloy filter ring for durability while remaining lightweight.

77mm front filter threads allow for use with other filters.

Knurled front edges provide a more textured grip when mounting or removing it from a lens.

Filter pouch for storage and transport.

Related Questions and Answers

Q: 1. whats is the front thread size for 67mm?

A: The Haida PROII CPL-VND 2-in-1 Filter (67mm) has a front thread size of 72mm; the mounting thread is 67mm.

Q: 2. What does the MRC in the name mean?

A: The letters MRC in a filter refer to the multi resistant coatings. The SmallRig 77mm MRC Variable ND Filter has 18 layers of coatings on each side for optimal quality and for water- and oil-resistant performance.

Q: 3. Is there any difference between this filter & the Haida NanoPro One Million X Edition?

A: The Haida NanoPro Solar Neutral Density Filter 20 stop filter has K9 Optical Glass Construction and the NanoCoating. Those 2 features are missing from the Million X version.

Q: 4. does this filter fit on the nikkor 70-300 f4.5-6.3 lens for nikon cameras?

A: The Nikon AF-P DX NIKKOR 70-300mm f/4.5-6.3G ED VR Lens uses a 58mm filter in front. The NiSi 58mm Natural Night Filter is a better choice. https://bhpho.to/3juKIAh

Q: 5. Does this have hard stops?

A: Hello Michael, The Variable ND Filter does not have hard stops. The nature of this type of filter will not have incremental hard stops, and the MIN and MAX marks on the rings are used as a guide.

Q: 6. does this filter cast any color stint such as magenta on the photographs taken in the night on New york citi sky/building photographs?

A: Yes it is a slight magenta cast which when used in proximity to city lights, evens out the warm colorcast from the city lights.

Q: 7. The photos show the filter has a very green tint. Is the filter green or is it neutral?

A: The SmallRig 77mm MRC Variable ND Filter is not a green filter. It is a varible ND filter.

Q: 8. What are the disadvantages of this filter vs ICE EXUS, Marumi DHG ND 100,000?

A: There are no disadvantages on the Haida NanoPro Solar Neutral Density Filter (77mm, 20-Stop) when compared to those. The Haida is a great filter with high end coatings.

Q: 9. Is this filter safe for photographing a Solar Eclipse?

A: The Haida NanoPro ND5.0 Filter (95mm, 16.5 Stop) is unsafe for photographing a Solar Eclipse. The filter does not block UV or IR light. Instead, get the MrStarGuy 95mm Thread-in White-Light Solar Filter, BH #STSG95MMSOL.

Q: 10. Is the circular polarizer compromised at all by the dual function?

A: The dual function does not compromise the circular polarizer feature on the Haida PROII CPL-VND 2-in-1 Filter (77mm).