The 100 x 150mm,3-stop Benro Hard-Edge Reverse-Graduated ND Filter 100x150mm 3-Stopis compatible with filter holders that can accommodate 100mm-wide, 2mm-thick filters. 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 0.9 band of density across its center region that provides up to a 3-stop reduction in light from entering a lens. This band extends vertically in both directions and tapers to a band of reduced density toward the edge above it. Directly below the 0.9 band of density, it tapers to clear with a hard-edged line of transition before the clear area.

The placement of a 0.9 band of density with a clear area directly below allows the Benro 100 x 150mm Master Series Hard-Edge Reverse-Graduated Neutral Density 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 Benro 100 x 150mm Master Series Hard-Edge Reverse-Graduated Neutral Density 0.9 Filter. The hard-edged line of transition in this reverse, graduated neutral density filter is useful for hard transitions between the sky and land, while the gradation above the 0.9 band of density is applicable to multiple regions of brightness within the sky.

Benro Master Series filters are constructed from Schott B270 glass. To prevent internal ghosting and reflections, while further enhancing clarity and color fidelity, each glass surface includes multiple layers of antireflection coatings. These coatings also offer greater protection to the filter substrate and help it to stay clean for longer than with uncoated filters. The nano coating associated with Benro Master Series filters provides an additional 13th layer over each side of this filter, resulting in an improved beading effect when in contact with water for greater cleaning efficiency.

A plastic case with a padded pouch is included for storage and transport.

0.9 Optical Density    Multicoated Surfaces with Nano Coating    Schott B270 Glass Construction    Reduce Exposure for Sunrises or Sunsets    Increases to Maximum Density at Center    Effect Configured for Sun at Horizon    Plastic Case with Padded Pouch

• This filter is compatible with filter holders that can accommodate 100mm-wide, 2mm-thick filters
• Effectively darkens bright skies, specifically during a sunrise or sunset, while allowing for a normal, unaffected exposure in the other regions of the image.
• 3-stop band of density that tapers to a band of reduced density toward 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.
• 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.
• Hard-edged line of transition between the 3-stop band of density and the clear area below it is useful for hard transitions between the sky and land.
• Filter does not affect the overall coloration of the image.
• Filter features Schott B270 glass construction.
• Multicoating prevents internal ghosting and reflections.
• Nano coating provides an improved beading effect with water for more efficient cleaning.
• Plastic case with padded pouch included for storage and transport.

Related Questions and Answers

Q: 1. Are these IR cut?

A: Yes, the SmallRig Cine Neutral Density Filter (4 x 5.65", 3-Stop) attenuates infrared light from 400nm to 1100nm.

Q: 2. Does it come with a case?

A: Yes. B and W is high quality glass....case included.

Q: 3. Does it have front filter threads?

A: The Moment 77mm Variable Neutral Density 1.8 to 2.7 Filter (6 to 9-Stop) does not have front threads. The inner diameter is 85mm; the outer front diameter is 96mm.

Q: 4. Does it come with a case?

A: No sadly it is just a plastic display case.

Q: 5. What color aberrations are there?

A: The Moment 67mm Variable Neutral Density 0.6 to 1.5 Filter (2 to 5-Stop) does not exhibit and color aberrations.

Q: 6. Do the stop markings on the filter equal to 1/3 stop?

A: Yes

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. Are their both inside and outside threads on this filter so that it can be included anywhere in a stack?

A: I note it is threaded on both sides.

Q: 9. Does it hav front filter threads, for stacking other filters/hoods?

A: The Moment 77mm Variable Neutral Density 1.8 to 2.7 Filter (6 to 9-Stop) does not have front filter threads.

Q: 10. Will this fit the Nisi 75mm filter holder?

A: If the holder works with 75x75mm filters then yes you can use this in it. This should work with any 75x75 Filter Holder.