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Hoya

Hoya 46mm HD2 Circular Polarizer Filter

SKU: HY46CPLHD2 MFR: XHD2-46CRPL
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$197.80 List Price

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About the Hoya 46 Circular Polarizer

The Hoya 46mm HD2 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 has an 8-layer multi-coating for very high average light transmission of 99.35%. It is constructed from optical glass and features a thin frame.

Hoya 46 Circular Polarizer Features

  • Helps to reduce reflections and glare by filtering out light that has become polarized due to reflection from a non-metallic surface
  • Polarizing filters arrange and filter, directionally polarized light perpendicularly to the reflected light, allowing for the absorption of much of the light
  • Clears up haze in distant landscapes and provides more saturated, vivid colors
  • Strongest effect when used at a 90deg. angle from the sun
  • Circular polarizers are ideal for use with digital cameras and autofocus lenses where a linear polarizer will often disrupt auto exposure and focus features
  • Has an 8-layer multi-coating for very high average light transmission of 99.35%
  • Constructed from hardened optical glass to increase strength and durability
  • Thin frame
  • Water- and oil-repellent and scratch- and stain-resistant, making for easy cleaning

Hoya 46 Circular Polarizer Specifications

Filter Type Circular Polarizer
Size 46 mm
Filter Factor 1 to 1.5 stops
Multi-Coated Yes, 8-layer
Effect Eliminates reflections and haze and improves color and tonal saturation
Construction Optical glass
Front Filter Thread Size 46 mm
Front Lens Cap Size 46 mm
Thickness 0.04" (1.0 mm)
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