Tiffen 138mm Hot Mirror IRND 2.1 Filter

Tiffen 138mm Hot Mirror IRND 2.1 Filter

Tiffen 138mm Hot Mirror IRND 2.1 Filter

B&H # TIHMIND21138 MFR # W138HMIRND21
Tiffen 138mm Hot Mirror IRND 2.1 Filter

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Expected availability: 2-4 weeks

Product Highlights

  • Enables Use of ND Without IR Pollution
  • Maintains Color Fidelity
  • For HD Camera Without Internal IR Filter
  • ColorCore Water White Glass

This item is noncancelable and nonreturnable

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Tiffen W138HMIRND21 overview

  • 1Description

The Tiffen 138mm Hot Mirror IRND 2.1 Filter is a combination of both a hot mirror infrared control filter and a 2.1 neutral density filter. A hot mirror IRND is ideal for HD cameras, which have greater low-light sensitivity and, subsequently, an increased susceptibility to IR contamination. When using a standard neutral density filter to counter the increased light sensitivity afforded by the HD sensor, the effects of infrared pollution become more apparent. This filter combines an ND filter with a comparable 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 hot mirror filtration incorporates a dielectric mirror in order to combat the effects of both near and far infrared regions of the spectrum.

This filter is constructed from Water White glass and is made using ColorCore technology, a process that involves laminating the filter substrate between 2 pieces of optical glass, grinding flat to a tolerance of 1/10,000th of an inch, and then mounting to precision metal rings.

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.
2.1 neutral density filter provides a 7 stop exposure reduction.
Ideal for use with HD cameras without an integrated infrared-blocking filter.
Hot mirror filter blocks infrared pollution from both near and far regions of the spectrum while allowing all visible light to pass.

Tiffen W138HMIRND21 specs

Filter Type Solid ND Combination
Combination Type IR Attenuation
Density 2.1 (7 Stops)
Shape Circle
Circular Size 138 mm
Front Accessory Thread / Bayonet 138 mm
Filter Material Glass

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