The 82mm Solid Neutral Density Infrared (IR) 2.1 Filter from Tiffen has several uses and offers the possibility to achieve otherwise unachievable results. This filter provides clearer and purer neutral density than provided by standard ND filters. The benefit is that it works better with today's hi-definition cameras and lenses. Because of this enhanced clarity, stronger grade ND filters can be used while still enabling the shooter to adjust exposure without affecting color balance.
ND filters appear gray and reduce the amount of light reaching the either the sensor of a digital camera or the film plane of a traditional film camera. Neutral Density filters are used to create some unusual special effects such as capturing the "blur" of the rippling water of a waterfall or the swirling effect of city traffic. Since they allow the use of slower shutter speeds in bright light, it becomes possible to create these special effects that would normally not be possible to capture without the filter. And since they can also help to control your depth of field, they permit you to shoot at wider apertures. Ultimately, their value is in helping to prevent bright, overly washed out images shot in bright light.
A 2.1 (7 stop) Neutral Density filter causes such a distinction between fore/background that your subject will become completely isolated from the rest of the image. Water will appear to be flowing at a rapid rate even though in reality, it was just a trickle. Using this filter on a very bright beach with a high ISO will prevent the shot from being completely washed out and overexposed.
Water White glass, incorporating ColorCore technology, is characterized by a high transmission quality. Typically, it will transmit 98-99% of the light. It also features an anti-glare and anti-reflective quality that makes it useful in a wide range of uses including the movie theater industry, store and art displays. The glass is virtually defect-free and is becoming more and more prevalent in digital equipment.
Reduces Infrared Bleed Above 700nm
This is particularly important as it now allows for the use of the heavier grades of neutral density filters needed for hi definition cameras while, at the same time, maintaining complete color balance
Neutral Density Filters Have Four Main Uses
To enable slow shutter speeds to be used, especially with high speed ISOs, 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
Top Hollywood motion picture studios rely on Tiffen filters for their multimillion-dollar productions Superior quality and design make Tiffen the overwhelming choice of moviemakers, professional photographers and even NASA
Tiffen has also been awarded an Emmy, from the Academy of Television Arts and Sciences, for its engineering excellence
Tiffen, a leader in the filter industry, proudly makes its filters in the USA
Solid Neutral Density IR (infrared)
82mm 5mm thick
7 stops Reduces ISO by 1/128
Eliminates Infrared bleed above 700nm Use of slower shutter speeds Helps control depth of field Create a blur effect in water
Hi-Definition cameras To use high speed ISOs in bright light Nature, travel, outdoor photography