Hoya 49mm HD Circular Polarizer Filter

BH #HOHDCP49 • MFR #HO-PLCHD49
Hoya
Hoya 49mm HD Circular Polarizer Filter
Key Features
  • Circular Polarizer Filter
  • 2x Filter Factor, +1 Stop
  • Helps to Eliminate Reflections and Glare
  • Reduces Haze in Landscapes
The Hoya 49mm HD 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.
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$44.95

Hoya 49mm HD Circular Polarizer Filter

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Hoya HO-PLCHD49 Overview

The Hoya 49mm HD 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 constructed from optical glass for clarity as well as color fidelity and features a thin, aluminum-alloy filter ring that can be rotated to adjust the intensity of the polarization effect. To prevent internal ghosting and reflections, eight layers of anti-reflection multi-coatings are applied to the filter's glass. These coatings also offer greater protection to the filter substrate and help it to stay clean for longer than with uncoated filters.

Helps to reduce reflections and glare by filtering out light that has become polarized due to reflection from a non-metallic surface.
Arranges, and filters, 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 90° angle from the sun.
Ideal for use with digital cameras and auto focus lenses where a linear polarizer will often disrupt auto exposure and focus features.
2x filter factor reduces exposure by 1 stop.
Constructed from optical glass for clarity and color fidelity.
Eight layers of anti-reflective multi-coating help prevent internal ghosting and reflections.
Thin and durable aluminum-alloy filter ring minimizes the potential for vignetting when used with wide-angle lenses.
Filter ring can be rotated to adjust the intensity of the polarization effect.
Plastic filter case for storage and transport.
UPC: 024066056283

Hoya HO-PLCHD49 Specs

Filter TypeCircular Polarizer
Filter Factor2x (1-Stop)
Circular Size49 mm Filter Thread
RotatingYes
Front Accessory Thread / Bayonet49 mm
CoatingsMulti-Coating
Physical FeaturesSlim
Filter MaterialGlass
Ring MaterialAluminum
Packaging Info
Package Weight0.125 lb
Box Dimensions (LxWxH)3.85 x 3.8 x 0.8"
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