The 84 x 100mm Cokin NUANCES Extreme P Series Soft-Edge Reverse-Graduated ND Filter is designed for use with a Cokin P Series Filter Holder. It can be applied 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 achieves its effect with a 1.2 band of density across its center region that provides a 4-stop reduction in light from entering a lens. This band extends in both vertical directions which tapers to a 0.9 density that provides a 3-stop reduction in light at the edge above it. Directly below the 1.2 band of density, it tapers to clear, with a soft-edged line of transition before the clear area.

The placement of a 1.2 band of density that tapers to a density of 0.9 above it with a clear area directly below, allows the Cokin NUANCES Extreme P Series Soft-Edge Reverse-Graduated Neutral Density 1.2 to 0.9 Filter to match the positioning of the sun when it is at, or immediately above the horizon. In such instances, the sun can appear closer to the center of an image as opposed to the upper edge, and an increase in brightness is created that is more prominent on both sides of the sun than above it. This pattern of brightness corresponds to the density pattern on the Cokin NUANCES Extreme P Series Soft-Edge Reverse-Graduated Neutral Density 1.2 to 0.9 Filter. The soft-edged line of transition in this reverse, graduated neutral density filter is useful for soft transitions between the sky and land, while the 4-stop to 3-stop gradation is applicable to multiple regions of brightness within the sky.

Cokin NUANCES Extreme filters are constructed from tempered, shock-resistant glass and feature nano-metallic alloy film coatings on both sides of the filter surface to attenuate infrared light while maintaining true color fidelity, even when stacked with other Cokin NUANCES or NUANCES Extreme filters. Anti-glare coatings further help to reduce surface reflections for increased contrast and clarity, while additional hydrophobic coatings result in an improved beading effect when in contact with water for greater cleaning efficiency. Additionally, Cokin NUANCES Extreme filters feature C-shaped edges. This rounded edge shape resists chipping to further enhance durability.

1.2 to 0.9 Optical Density    Anti-Glare and Hydrophobic Coatings    Nano-Metallic Alloy Film Coatings    Shock-Resistant Glass Construction    Reduce Exposure for Sunrises or Sunsets    Increases to Maximum Density at Center    Soft-Edge Line of Transition    Effect Configured for Sun at Horizon    C-Shaped Edges, Padded Pouch

• This filter is compatible with a P Series Filter Holder.
• Effectively darkens bright skies, specifically during a sunrise or sunset, while allowing for a normal, unaffected exposure in the other regions of the image.
• 4-stop band of density that tapers to a 3-stop density at the edge above it while directly above a clear area creates a neutral density pattern that matches the positioning of the sun when it is at, or immediately above the horizon.
• 4-stop band of density extends in both vertical directions.
• Density pattern corresponds to the brightness pattern of the sun when it appears at or is closer to the horizon as opposed to a higher angle, which creates an increase in brightness that is more prominent on both sides of the sun than above it.
• Soft-edged line of transition between the 4-stop band of density and the clear area below it is useful for images where the transition between sky and foreground is indeterminate, such as images featuring mist, fog, or the tops of trees.
• 4-stop to 3-stop gradation is applicable to multiple regions of brightness within the sky.
• Filter does not affect the overall coloration of the image.
• Tempered, shock-resistant glass construction maintains high optical clarity with low reflectivity.
• A nano-metallic alloy applied to both sides of the filter attenuates infrared light and ensures neutral coloration even when stacked with other Cokin NUANCES or NUANCES Extreme filters.
• Anti-glare coatings help to reduce surface reflections for increased contrast and color fidelity.
• Hydrophobic coatings result in an improved beading effect when in contact with water for greater cleaning efficiency.
• C-shaped edges resist chipping to further enhance durability.
• Padded filter pouch included for storage and transport.

Related Questions and Answers

Q: 1. Would these work on a camera that has been converted for infrared? Mine passes visible light above 590 nm and near infrared light. I do not want to block infrared light any more than visible light.

A: You would need to ask the company that did the IR conversion specifically but Kolari Vision (for example) makes their own IR ND filter so these filters should be fine too.

Q: 2. What type of adapter ring is needed for Cokin BPE01 Filter holder?

A: It will depend on what filter thread is on your lens. Find the filter thread for your lens and choose the size of the adapter ring here https://bhpho.to/3e43Tk6

Q: 3. Would these work in a matte box?

A: These filters will fit in a matte box that accepts 100mm filters that are 2mm thick.

Q: 4. Is the Conkin 4 color filters useable with digital cameras or film cameras only?

A: Yes, you can use these filters with digital cameras as well.

Q: 5. Does this stack with the kase 90mm magnetic polarizer?

A: Yes it can stack with a Kase 90mm Magnetic Polarizer.

Q: 6. Can I use this wallet for the 100mm format hitech system ?

A: The filters will be the same size so it should fit other 100mm filters.

Q: 7. Will it fit in Lee 100 and Nisi V6 filter holders?

A: Yes, they are all 2mm thick and will work with each other.

Q: 8. Will format Hitech 4x6 filters work with this?

A: These items were purchased as a gift. I never used them.

Q: 9. What filter system do you recommend/use with this filter?

A: This is a 100 x 100mm - 2mm thick filter, and one of the most popular systems for that size is the LEE Filters LEE100 Filter Holder (https://bhpho.to/2Tg0TrU)

Q: 10. This comes with some foam gaskets but don't the filters already have these attached? If so, what's the point of including extras.

A: Those are replacement foam gaskets in case the others wear out.