This 1-stop, 4 x 4" NiSi Nano IRND Filter 4x4 1-Stopis a 4mm ND filter with a 2x filter factor that provides a 1-stop exposure reduction. Its 0.3 optical density creates a darkening of the entire image, allowing you to photograph with a wider aperture or slower 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. Neutral density filters are intended to not affect the coloration of the image and are ideal for pairing with other filters.

Compatible only with NiSi C4 Filter Holding Kit, 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 4 x 4" Nano IRND 0.3 Filter, one layer of NiSi Optical Nano Coating is applied to each of this filter's surfaces.

This NiSi 4 x 4" Nano IRND 0.3 Filter is constructed from optical glass for clarity as well as color fidelity, and measures 4mm thick.

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

Compatibility:
NiSi C4 Cinema Filter Holder Kit for 4mm Filters.

4 x 4" neutral density filter darkens the image, allowing you to photograph with a longer shutter speed or wider aperture than normally required.

Providing a 1-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.

Constructed from optical glass for clarity.

Leatherette pouch included for storage and transport.

Related Questions and Answers

Q: 1. is there a particular reason Nisi makes this density in 100x100mm and not 4x4? I need 8 stop ND to complement my Nisi IRND set

A: You can use 100x100 filters. 100x100 is the same as a 4x4 filter.

Q: 2. I have the V5 set. If these have the gasket pre-installed, can they be stacked or used in the outer slots with one in the nearest slot?

A: You cannot stack more than 1 filter in each slot.

Q: 3. 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: 4. Will this filter work in a Lee Foundations filter holder?

A: Yes it does

Q: 5. 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: 6. 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: 7. Are theses filter can be hold with the nisi 100mm holder v5 ?

A: Sorry shopper, these Cinema filters will not fit into the V5 Holder.

Q: 8. 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: 9. How we can get these products in Nepal? Regarding diameter of lens it's 77mm which one ND will fit on it?

A: Please enter your shipping address for duties and taxes. You can use ND filters that have a 77mm filter thread.

Q: 10. Does this fits Tilta 4 x 5.65" Stackable Filter Tray Holder (BH #TIMBT16SFH)?

A: According to Tilta, the Mirage-system supports 2mm and 4mm filters like this Nano IRND 2.1 filter. The issue with your question, however, is that the stackable filter tray holder is not the device you need to hold the filter. You need TIMBT16SFT (stackable filter tray) AND TIMBT16SFH (stackable filter tray HOLDER) to work with the Mirage matte box.