The Tokina PRO IRND filter is a revolutionary filter that stabilizes the transmittance of color throughout the visible spectrum. There are generally two types of IRND filter manufacturing processes currently in the market today. One type cuts the near infrared from a particular wavelength and the other controls rather than cuts the infrared up to 1200 nm. The Tokina PRO IRND filter is of the latter category, using suppression rather than cutting to eliminate infrared pollution. Even though both methods can be equally effective, the former type of cutting is often prone to producing unwanted color shifts. The round PRO IRND filter has an ND vapor deposition coating on both sides of the glass creating a high-precision, truly neutral filter.

• No extra white balance adjustments
• No IR pollution
• No color shift
• No color corrections

Related Questions and Answers

Q: 1. I have heard these will fit 114mm lenses like Rokinon Xeens, even though these are 112mm. How is that possible?

A: The Rokinon XEEN lenses have a front diameter of 114mm, so this filter would not be compatible.

Q: 2. 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: 3. 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: 4. 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: 5. How thick are these filters? I'm looking for one 4mm thick to fit my mattebox tray.

A: Yes, these filters are 4mm thick.

Q: 6. I have a mirrorless camera that I had converted for IR photography; regular ND filter do not have any effects on exposure; I want to shoot IR with long exposure, will this NiSi IRND do the job?

A: No, the NiSi 82mm PRO Nano IRND 3.0 Filter (10-Stop) would not be compatible for your usage needs. It does the opposite of what you are looking for; it is designed to block IR to the extent that there will not be infrared pollution when taking a long exposure. As an alternative, the filters in the NiSi Swift FS ND Filter Kit (82mm), B&H # NIRFSNDSWK82, are designed to pass all wavelengths of light evenly, so this would also be an alternative for your usage needs. Also, as standard neutral density filters pass along infrared light unless it specifically indicates it has IR reduction, a filter such as the Hoya ProND EX 1000 Filter (82mm, 10-Stop), B&H # HOPNDEX1T82, should also work for your usage needs. https://bhpho.to/3ieQ30o https://bhpho.to/3LZm8bn

Q: 7. will this fit the tilta mini matte box?

A: Yes the NiSi 4 x 5.65" Nano IRND 0.3 Filter (1-Stop) BH #NIRND034X565 • MFR #NIC-4565-ND0.3 will fit the Tiltaing Mini Matte Box BH #TIMBT15 • MFR #MB-T15.

Q: 8. What Filter Thickness is? 2 or 4 mm?

A: Haida 4 x 5.65" V-Pro Series MC IRND 0.6 Glass Filter (2-Stop) are 4mm thick.

Q: 9. Are these the same glass as that found on their cine versions?

A: I contacted NiSi concerning your inquiry. According to the manufacturer, yes, the NiSi 77mm HUC PRO Nano IRND 1.8 Filter (6-Stop) uses the same optical grade glass as used in their standard square filters and their Cinema line filters. They state the only filters in their inventory that use B270 Schott glass would be the filters in their 100mm wide Explorer line, which are not available in the circular format.

Q: 10. Does this go with the NiSi 82mm Swift VND Mist Kit 1-9 Stops (1-5-Stop VND, 4-Stop ND, Black Mist 1/4)?

A: The NiSi 82mm HUC PRO Nano IRND 1.8 Filter (6-Stop) can be used on any lens or filter that has an 82mm filter thread. It does not use the Nisi Swift Friction Mount System.