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Schneider 138mm Unmounted Circular Polarizer Filter

SKU | 68-019904

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The Schneider 138mm Unmounted Circular Polarizer Filter helps to reduce reflections and glare by filtering out light that has become polarized due to reflection from a non-metallic surface.
Original price $468.00 - Original price $468.00
Original price
$468.00 - $468.00
Current price $468.00

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Unmounted Circular Polarizer Filter
For Third-Party or Custom Holders
2.77x Filter Factor, +1.47 Stops
Helps to Eliminate Reflections and Glare
Reduces Haze in Landscapes
Greater Color and Tonal Saturation
Water White Optical Glass
138mm Diameter
Filter Pouch

The_Schneider 138mm Unmounted Circular Polarizer Filter_helps to reduce reflections and glare by filtering out light that has become polarized due to reflection from a non-metallic surface. The light from the sun naturally becomes 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 circular polarizer only differs from a linear polarizer in that it contains a quarter wave plane in addition to the linear polarizing filter. The addition of this quarter wave plane is to circularly polarize the 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, 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 non-coated and delivers approximately 38% average light transmission. Constructed from Water White optical glass, it is 138mm in diameter and unmounted for use in third-party or custom filter holders.



Type Circular Polarizer
Size 138 mm
Filter Factor 2.77 (1.47 stop)
Multi-Coated No
Effect Eliminates reflections and haze and improves color and tonal saturation
Construction Water White optical glass
Front Filter Thread Size None
Front Lens Cap Size None

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