Product Highlights
The Tiffen 4 x 4" Full Spectrum IRND 1.8 Filter is a combination of both an infrared control filter and a 1.8 neutral density filter. An 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.
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 and grinding flat to a tolerance of 1/10,000th of an inch. This filter measures 4 x 4" / 101.6 x 101.6mm.
Tiffen Optical Filters
Tiffen filters are manufactured using ColorCore
technology, a closely guarded proprietary process that entails permanently
laminating the filter material in between two pieces of optical glass that are
ground flat to tolerances of a ten-thousandth of an inch, then mounting them in
precision metal rings. The ColorCore process allows us to control the color and
density of Tiffen filters, and the characteristics of special effects filters
with much greater accuracy than typical dyed-in-the-mass filters, which usually
exhibit color and density .
When Tiffen filters are ground and polished, the Colorcore
is unaffected, so color and density remain uniform. Indeed, when you hold a
group of Tiffen filters of the same type against a white sheet of paper, they
all look identical -- because they are! Try this with our competitor's filters
and you're likely to see slight variations.
Maybe that's why most top Hollywood motion picture studios
rely on Tiffen filters for their multimillion-dollar productions, or why we can
custom-make an exact replacement for them if one breaks on the job. That's
consistency, and excellence - two pretty good reasons why, when it comes to
filters, you should rely on Tiffen too. More...
See the Difference Tiffen Filters Make
Tiffen filters make a big difference indoors, outdoors, in
close-up portraits or mile-wide landscapes, in bright sun or shade, and in many
other photo situations - the right Tiffen filter delivers a great image instead
of a snapshot. Whether you're shooting photos or video, in black and white or
color, Tiffen filters offer a variety of subtle, special and spectacular
effects to give you more enjoyment every time you use your camera or camcorder.
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