The Tokina PRO IRND 0.9 Filter is an ND filter with an 8x filter factor that provides a 3 stop exposure reduction. Its 0.9 density creates a darkening of the entire image, allowing you to photograph with a wider aperture or slower shutter speed than normally required. By slowing your exposure time or increasing your aperture, you are able to control depth of field and convey movement more easily. Neutral density filters are intended to not affect the coloration of the image and are ideal for pairing with other filters.
The design of this filter has been optimized for use with digital sensors and to promote nearly flat attenuation of visible and infrared light. Due to imaging sensors' greater susceptibility to infrared light, compared to traditional film, color casts can occur when photographing darker subjects that require increased exposure times. To provide a high level of neutrality across the visible and infrared spectrums in order to eliminate color casts and ensure cleaner, truer blacks, each glass surface includes one layer of ACCU-ND Vapor Deposition coating.
This Tokina PRO IRND 0.9 Filter is constructed from optical glass for clarity as well as color fidelity.
Filters, like all crafted optics, are susceptible not only to breakage, but to premature aging caused by environmental factors. Most filters are made up of several layers of materials consisting of glass, dyes, optical cements, chemical compounds, particles etc. Even with protective measures employed, there are many factors that can still affect the longevity of the filter: moisture (prolonged exposure to humidity), excessive heat and excessive light are the most common environmental causes that can affect the filter’s chemistry over time.
To protect your filters and keep them in great working condition for a long time (along with the rest of your camera gear) we recommend making sure to keep the filters stored in a dark, cool, and dry place when not in use. The use of filter pouches or specialized cases will also keep your filters safe from breakage when not in use. If you are in a humid environment, the addition of fresh silica gel packs or a dehumidifier in the room they are stored is also highly recommended. Protecting your filters as you would your camera lenses will ensure many years of use of your filters.
What do you recommend cleaning filters with?
Hand blower first, if it's just light dust,that usually handles it. If you need to clean further, a Kim Wipe sprayed with Tiffen/Pancro Lens Cleaner, work in a circular motion from the middle out.
We at Guru Enterprises in Chatsworth, CA thank-you for stopping by. Please keep us in mind for all your requirements in motion picture equipment in future.
We deal in both - New & Used Gear.
We can order any product from Tiffen/Schneider Optics/Lindsey Optics/Oconnor/Sachtler/Teradek/SmallHD/Wooden Camera/Formatt-Hitech/Tokina so let us know your special requirements if you have any.
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KEY WORDS: ARRI ARRIFLEX RED TIFFEN PANAVISON