Tiffen Water White Glass IRND Filter (40.5mm, 6-Stop)

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 1.8 (6-stop) neutral density filter requires one additional stop of compensation from the 1.5 variety. If your subject is walking through the scene, it is quite possible he may not even show up since your shutter speed will be so slow that there may not be time for the recording medium to catch his passing.

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 and store and art displays. The glass is virtually defect-free and is becoming more and more prevalent in digital equipment.

This is particularly important as it now allows for the use of the heavier grades of neutral density filters needed for high-definition cameras while, at the same time, maintaining complete color balance

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