This 77mm Tiffen Water White Glass IRND Filter 77mm 6-Stopis a neutral density filter with a 64x filter factor that provides a 6-stop exposure reduction. Its 1.8 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.

1.8 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

1.8 neutral density 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 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. Are there front threads on this filter for use with a lens hood? Also, does it work as a screw in filter on the SmallRig mini matte box? If so, are adapters needed?

A: Yes. The following filter does offer front end threads.

Q: 2. 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: 3. Do normal 77mm lens caps fit on this?

A: No you will need to purchase an 82mm cap.

Q: 4. 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: 5. I have Nikon 16-35mm len. I heard someone indicated that this len may cause flare. Can I attach my 77mm len hood to my wide-angle len first and then attach this ND len on the wide-angle len???

A: Not really. The Eclipse should be attached to the Wide Angle lens and then attach the Fader Hood. The hood should reduce the chance of flare.

Q: 6. Can I use it for Solar photography directly for Oct 2023?

A: The Haida NanoPro Solar Neutral Density Filter (82mm, 20-Stop) is safe for the camera, but not for viewing by a person. Always use an approved ISO 12312-2 certified solar filter when observing the Sun through optics or cameras.

Q: 7. Which stack caps or covers fit this filter for protection when not in use?

A: There are several caps for the SmallRig 77mm MRC Variable ND Filter on the product page, under the "Accessories" tab: https://www.bhphotovideo.com/c/product/1681507-REG/smallrig_3590_77mm_mrc_variable_nd.html/accessories

Q: 8. Are Minimal = 2 stops and Max = 8 stops? How do I read the marks on the ring to know 2/4/8 stops?

A: When I am using the Eclipse I never worry about what stop I am using. What difference does it make? All I am interested in doing is getting it dark enough to be able to slow down my shutter speed so that I can get the effect I want. I never have to change filters if the 2 stop or 6 stop isn't enough, I just rotate the filter. Don't think about what number it is just use the the darkness you need. Hope this helps.

Q: 9. Is the thumb screw removable for use w/ a lens hood?

A: According to the manufacturer, the thumb screw on the the SmallRig 77mm MRC Variable ND Filter can be removed. However, SmallRig recommends not to use this filter with a lens hood.

Q: 10. Does it get stuck to the lens often?

A: At this writing we have not had issues with the Haida PROII CPL-VND 2-in-1 Filter (82mm).