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User Manual for Tiffen 138mm WW IR Polarizer Filter Click to enlarge the picture
Contents of the user manual for the Tiffen 138mm WW IR Polarizer Filter
- Product category: IR Control Tiffen
- Brand: Tiffen
- Description and content of package
- Technical information and basic settings
- Frequently asked questions – FAQ
- Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
- Authorized service for Tiffen IR Control
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User manual for the Tiffen 138mm WW IR Polarizer Filter contain basic instructions
that need to be followed during installation and operation.
Before starting your appliance, the user manual should be read through carefully.
Follow all the safety instructions and warnings, and be guided by the given recommendations.
User manual is an integral part of any Tiffen product,
and if it is sold or transferred, they should be handed over jointly with the product.
Following the instructions for use is an essential prerequisite for protecting
health and property during use, as well as recognition of liability on the part of the manufacturer
for possible defects should you make a warranty claim. Download an official Tiffen user manual in which you will find instructions on how to install, use, maintain and service your product.
And do not forget – unsuitable use of a Tiffen product will considerably shorten its lifespan!
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Product description The Tiffen 138mm WW IR Polarizer Filter is a combination linear polarizer and near-infrared to infrared control filter that is designed for digital cinematography. When this filter is used, it helps to reduce reflections and glare by filtering out light that has become polarized due to reflection from a non-metallic surface. Simultaneously, near-infrared light waves beginning at 680nm are blocked by approximately 80% and infrared light waves at higher frequencies are further impeded until nearly flat attenuation is achieved at 720nm.
This filter is useful as many digital motion-picture cameras are designed to maximize their ability to capture red hues, and in that process near-infrared or infrared contamination may occur. If the proportion of near-infrared or infrared light that reaches the sensor of a digital cinematography camera becomes too great, the results can show unwanted color shifts, particularly in dark areas of the frame such as shadows where the appearance of black is dominant.
While helping to preserve color accuracy when using a digital motion-picture camera, the Tiffen 138mm WW IR Polarizer Filter also addresses the effect of light from the sun becoming partially polarized due to reflecting off electrons in air molecules, causing the light to scatter into what appears as haze. A polarizing filter arranges, and filters, this directionally polarized light perpendicularly to the reflected light, allowing for the absorption of much of this light. This results in a noticeable reduction of glare and reflections from non-metallic surfaces and an increase in the saturation of skies and foliage.
A linear polarizer differs from a circular polarizer in that it does not contain an additional quarter wave plane. The addition of a quarter wave plane is to circularly polarize linearly polarized light for the use of auto focus and exposure functions. Due to how the light is broken down and filtered with a linear polarizer, in-camera auto focus and exposure accuracy become skewed during use. When the light becomes circularly polarized, it permits the use of these functions.
This filter is recommended when not using in-camera exposure metering or autofocus. It is non-coated with a 3x filter factor that results in a 1.6 stop exposure reduction. Constructed from Water White optical glass, the Tiffen 138mm WW IR Polarizer Filter is 138mm in diameter and mounted for use in third-party or custom filter holders. It 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. No front or rear threads are included on this filter's ring, or mount. - Mounted without front or rear threads for use in third-party or custom filter holders for film and television cameras
- Designed for use with CCD or CMOS sensors to filter out near-infrared and infrared light pollution that cause color shifts frequently associated with high-definition recording while helping to reduce reflections and glare by filtering out light that has become polarized due to reflection from a non-metallic surface
- Blocks near-infrared light waves beginning at 680nm by approximately 80% until nearly flat infrared attenuation is achieved at 720nm
- Clears up haze in distant landscapes and provides more saturated, vivid colors
- Strongest polarizing effect when used at a 90° angle from the sun
- Recommended when not using in-camera exposure metering or autofocus
- 3.0x filter factor reduces exposure by 1.6 stops
- Constructed from Water White glass for increased optical clarity
- Filter Pouch for storage and transport
UPC: 884613016982 In the Box Tiffen 138mm WW IR Polarizer Filter Pouch Limited 1-Year Warranty Table of Contents
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Technical parametersTiffen W138IRPOLA Specs | Filter Type | Infrared control and linear polarizer | | Size | 138mm | | Filter Factor | 3.0 (1.6 stop) | | Coatings | None | | Effect | Prevents or minimizes unwanted color shifts with digital cinematography cameras; eliminates reflections and haze while improving color and tonal saturation | | Construction | Water White glass with ColorCore technology | | Rear Thread | None | | Front Filter Thread Size | None | | Front Lens Cap Size | None | | | | Package Weight | 0.5 lb | | Box Dimensions (LxWxH) | 6.7 x 6.3 x 1.1" |
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