The 5-stop, 100 x 100mm NiSi Nano IRND Filter 100x100mm 5-Stopis an ND filter with a 32x filter factor that provides a 5-stop exposure reduction. Its 1.5 density creates a darkening of the entire image, allowing you to photograph with a wider aperture or slower shutter speed without overexposing your image. By slowing your exposure time or increasing your aperture, 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 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. To provide a high level of neutrality across the visible and infrared spectrums in order to eliminate color casts and ensure cleaner, truer blacks when using the NiSi 100 x 100mm Nano IRND 1.5 Filter, one layer of NiSi Optical Nano Coating is applied to each of this filter's surfaces. The Nano coating associated with this filter also results in an improved beading effect when in contact with water or oil for greater cleaning efficiency.

This NiSi 100 x 100mm Nano IRND 1.5 Filter is constructed from optical glass for clarity as well as color fidelity, and measures 2mm thick.

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.

1.5 Optical Density    NiSi Optical Nano Coating    Optical Glass Construction    Designed for Solar Photography    Darkens Entire Image    Allows Reduced Shutter Speed    Allows Wider Aperture    Neutral Results, Visible, & IR Spectrums    Includes Leatherette Pouch

100 x 100mm neutral density filter darkens the image, allowing you to photograph with a longer shutter speed or wider aperture than normally required.

Providing a 5-stop exposure reduction, this filter allows you to control depth of field and convey movement more easily.

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

Each surface includes one layer of NiSi Optical Nano Coating that attenuates infrared light as well as visible wavelengths, to maintain color neutrality and suppress color casts due to increased exposure times.

Nano coating provides an improved beading effect with water or oil for more efficient cleaning.

Constructed from optical glass for clarity.

Leatherette pouch included for storage and transport.

Related Questions and Answers

Q: 1. How many stops would I need to do a long exposure of the direct sunset with a bright reflection off a river? I already have a 3, 6, and 10 and I can't get a past 2 second shutter speed with the 10 stop. Should I stack them or buy the 15 or 20 stop?

A: It is always better to use as few filters in front of the lens as possible so one 20 stop filter would be a better choice.

Q: 2. Schneider sells IR cut filters rated for 750nm and 680nm respectively. Do we know at what infrared wavelength this filter begins to cut light?

A: This filter does not cut light at specific nm, but cots down the light by 6 stops compared to what is available at the time of shooting.

Q: 3. What is the difference between this and the Nisi 4x4? (I read one is 2mm and the other is 4mm) what difference does that make?

A: 2mm filters are primarily used in slide-in filter holders, whereas 4mm filters would not fit them and are primarily used in matte boxes.

Q: 4. 4mm glass is for Nisi V5 system?

A: Nisi V5 uses 100x100mm by 2mm thick filters.

Q: 5. will this fit in to a LEE 100 system?

A: Yes. Lee systems adapts to all 4x4, 4x6 and all 100mm filters

Q: 6. How does this "Explorer" differ from the "Nano"?

A: The explorer is also Nano but NiSi Explorer filters are constructed from tempered Schott B270 glass for shock resistance as well as increased optical clarity and color fidelity.

Q: 7. where made ? china ?

A: I just receive mine, made in China..

Q: 8. Is the color rendition of this NISI 6 stop ND filter truly neutral?

A: Yes the filter is neutral and does not have any color shift.

Q: 9. Which side should be facing away from the camera? I realize this sounds like a silly question, but since these filters appear to have identical coating on both sides, I'm curious if it should make a difference? Should I assume that the side with the engraved writing be facing AWAY from the camera? I just received 3 of these (3, 5, and 7 stop filters) and a bit dumbfounded! BTW, the quality looks fantastic, along with the packaging.

A: Since both sides have identical coating, it doesn't matter which way the filter is facing. We've taken them out on several shoots without noticing a difference either way.

Q: 10. Does this filter fit inside Tilta Mini Matte Box 82mm adapter ring?

A: Yes.