This Pancro 4x5.650 IR+ND Filter (Pana) 0.9 combines the properties of an ND filter with an IR control filter to eliminate the spill of infrared light reaching the sensor while still maintaining the extra exposure benefits of a neutral density filter. The infrared control filter helps to block infrared pollution from affecting the color fidelity of imagery; this enables a wider color gamut and truer colors, especially noticeable in the darker regions of the image. While the 1.5 neutral density filter provides a 5-stop exposure reduction.
Pancro 4x5.650 IR+ND Filter (Pana) 0.9 is the result of a high vacuum coating of a metallic alloyï¾ thin film on one side of the glass. This is the same technology that is used to coat high end movie camera lenses with multilayer anti-reflection coatings. PANCRO IR+ND has a thin, metallic film which results in superior neutralityï¾ with a flat spectral curve ranging from 380 nm to 2000 nm. ï¾ This neutrality enables Pancro ND to filter out troublesome Infra-Red wavelengths in the 800 nm-2000 nm range that are captured on DV cameras. ï¾ The result is a true neutrality. PANCRO IR ND filters are manufactured on single-piece of optical-select glass which makes them resistant to cracks and scratches.
Panchromatic.ï¾ PANCRO ND is sensitive to all colors of the visible spectrum. When calibrated by a spectrophotometer at 2840K (indoor tungsten lighting), it experiences a color shift of only 16K towards red.
Neutral.ï¾ Like a partial mirror, PANCRO ND is partially absorbing and partially reflecting. Because of this neutrality, the overall appearance of the ND filter is a colorless, gray tone.
Accurately Controlled. PANCRO ND is consistently graded every .3, .6, .9, 1.2, and 1.5 densities. All ND filters are manufactured for matched filter sets.
Durable. The PANCRO ND coating is very tough and will not easily scratch.Passes Miltary Specification 13508C for government contracts.
WARNING: This product may expose you to chemicals which are known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.