The 1.2, 100 x 150mm Hard-Edge Reverse Graduated Nano IRND Filter from NiSi is compatible with filter holders that support 2mm-thick, 100 x 150mm rectangular filters, including the NiSi 100mm system. It can be used to darken bright skies, specifically during a sunrise or sunset, while allowing for a normal, unaffected exposure in the other regions of the image.

This filter has a 1.2 band of density across its center region. After a hard-edged line of transition, it tapers to a clear area. This design allows the filter to match the sun's position when it is at or immediately above the horizon. The hard-edged line of transition is useful for hard transitions between the sky and land. The filter features a waterproof and low reflection nano coating and comes with a leatherette carry pouch.

Variable 1.2 to 0.15 Optical Density    NiSi Optical Nano Coating    2mm Thick Optical Glass Construction    Reduce Exposure for Sunrises or Sunsets    Increases to Maximum Density at Center    Effect Configured for Sun at Horizon    Hard-Edged Line of Transition    Includes Leatherette Pouch

Related Questions and Answers

Q: 1. I am going to use this filter on my 60-600mm lens. Doesn't X-effect occur at any focal length?

A: The NiSi True Color ND-VARIO Pro Nano 1 to 5-Stop Variable ND Filter (105mm) does not create an X pattern at all. An "X" pattern tends to happen on lower end variable ND filters that cover a broader stop range such as 2 to 8 stops.

Q: 2. What's the difference between Nisi Explorer and Nisi Nano IRND filter ? which one is better !

A: The Explorer model would be comprised of Schott B270 Glass for impact resistance and better clarity over the Nano model.

Q: 3. Does the 67mm size cause vignetting when used with the Sony SEL20F18G lens?

A: No, the NiSi True Color ND-VARIO Pro Nano 1 to 5-Stop Variable ND Filter (67mm) will not cause a vignette on lenses, like the Sony FE 20mm f/1.8 G Lens (B&H # SO2018G).

Q: 4. Will this hold square 150mm filters?

A: Yes it can.

Q: 5. What is the front filter thread MM diameter?

A: The NiSi 95mm True Color ND-VARIO Pro Nano 1-5 Stop Variable Neutral Density Filter has a front 95mm size thread.

Q: 6. How many 4X5.6 filter can it hold?

A: As per the manufacturer, the S6 150mm Filter Holder Pouch is designed to fit up to (2) 150 x 150mm filters or 150 x 170mm filters with a thickness of 2mm. For your needs, you may want to consider the Ruggard 10-Pocket Filter Pouch for 4 x 6" Filters, BH # RUFP4610. https://bhpho.to/3jH1vlU

Q: 7. Can the frame be removed for it to fit in another brand filter holder? I currently have Lee system. If so, could it be reinstalled at a future date if needed?

A: The K series holder can fit other brands of filters that are 100mm wide and 2mm thick.

Q: 8. Will it fit the Rokinon 14mm f/2.8? If not, what will fit this lens?

A: The NiSi 150mm Q Filter Holder for Rokinon/Samyang 14mm f/2.8 IF ED UMC Lens, BH # NIPFH150SA14 would be the correct model. https://bhpho.to/3vi5bOs

Q: 9. Does the 43mm filter have 43mm filter threads int he front of it? Or like the 82,, does it have larger 86mm filter threads in?

A: The NiSi True Color ND-VARIO Pro Nano 1 to 5-Stop Variable ND Filter (43mm) has 43mm rear filter threads and 46mm front threads.

Q: 10. Hi, do you know if I could couple this filter on the Freewell quick swap system? I have the Freewell magnetic filter kit but they discontinued their revers grad filter.

A: Although both systems are magnetic, they have not been tested with one another to our knowledge. Your results may vary.