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Tiffen

Tiffen 4x5.65" Neutral Density 1.8 Infrared Filter

SKU: TF45IRND18 MFR: W45650IRND18
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$436.00 List Price

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About the Tiffen 4x5.65"" ND Filter

The Tiffen 4x5.65" Neutral Density (1.8) Infrared Color Core Glass Filter appears grey and reduce the amount of light reaching the film. They have no effect on color balance. Color shift is a critical factor in digital photography. This color shift is directly affected by the infrared spectrum. Specifically, in high definition photography, the sensitivity of imaging sensors to IR has become a challenge. This is particularly evident when using standard neutral density filters that absorb visible light but pass infrared.

Unlike many photographic films, the CCD or CMOS of a digital camera is inherently susceptible to infrared contamination, even when the manufacturer attempts to reduce this problem by adding an infrared absorbing filter on top of the image sensor. Because these filters do not have a sharp cutoff at the infrared wavelengths there has to be a compromise in order not to exclude visible red wavelengths.

While minor infrared contamination does not normally cause much of a problem for visible images, when using conventional neutral density filters especially denser grades, this issue is multiplied by the filter factor.

Tiffen 4x5.65"" ND Filter Features

  • To enable slow shutter speeds to be used, especially with high speed films, to record movement in subjects such as waterfalls, clouds, or cars
  • To decrease depth of field by allowing wider apertures to be used, which helps separate subjects from their background
  • To decrease the effective ISO of high speed film (above ISO 400) and allow it to be used outdoors in bright situations
  • To allow cine and video cameras (which have fixed shutter speeds) to film subjects such as snow, sand or other bright scenes which could cause overexposure

Tiffen 4x5.65"" ND Filter Specifications

Filter Type Neutral Density Infrared
Size 4x5.65" (100 x 140 x 4mm thick)
Grade 1.8 (6-Stop)
Filter Factor Reduces ISO by 1/64
Multi-Coated Yes
Effect Reflects infrared light from digital still cameras
Application Digital photography
Construction Color Core Glass
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