Hoya 52mm alpha Circular Polarizer Filter

Hoya 52mm alpha Circular Polarizer Filter

Hoya 52mm alpha Circular Polarizer Filter

B&H # HOCPA52 MFR # C-ALP52CRPL
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Product Highlights

  • Circular Polarizer Filter
  • 3 to 4x Filter Factor, +1.6 to 2 Stops
  • Helps to Eliminate Reflections and Glare
  • Reduces Haze in Landscapes
  • Greater Color and Tonal Saturation
  • Non-Coated
  • Optical Glass
  • Aluminum Frame
  • 52mm Front Filter Threads
  • Plastic Case
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Hoya C-ALP52CRPL overview

  • 1Description

The Hoya 52mm alpha 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 has approximately 96% average light transmission. It is constructed from optical glass and precision milled aluminum frames.

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 90° 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.
Non-coated.
Approximately 96% average light transmission.
3 to 4x filter factor reduces exposure by 1.6 to 2 stops.
Constructed from optical glass and precision milled aluminum frames.
Plastic filter case for storage and transport.
UPC: 024066056153
In the Box
Hoya 52mm alpha Circular Polarizer Filter
  • Plastic Filter Case
  • Limited 1-Year Warranty
  • Table of Contents
    • 1Description

    Hoya C-ALP52CRPL specs

    Filter Type Circular Polarizer
    Filter Factor 3 - 4 (1.6 - 2 Stop)
    Shape Circle
    Circular Size 52 mm
    Front Accessory Thread / Bayonet 52 mm
    Filter Material Glass
    Coatings None
    Packaging Info
    Package Weight 0.13 lb
    Box Dimensions (LxWxH) 3.5 x 2.8 x 0.6"

    Hoya C-ALP52CRPL reviews

    52mm alpha Circular Polarizer Filter is rated 4.7 out of 5 by 35.
    Rated 4 out of 5 by from 52mm Hoya Circular Polarizer Works OK The Hoya 52mm alpha Circular Polarizer Filter works ok, but I was hoping for a little more contrast at the peak position of the filter. I need to put in more time with the filter to determine how different lighting situations affect the filter, but for the price the filter is fine. Perhaps in the future I will spring for a more expensive Zeiss filter.
    Date published: 2014-06-17
    Rated 4 out of 5 by from Easy to use I was first introduced to a polarizer by a professional photographer while on vacation. This filter works great if you like Black and White photography landscapes with black skies. You will need to learn how and when to use the filter. The position you choose to aim your camera in relation to the sun is important as the effect won't be very noticeable if you don't place yourself properly.
    Date published: 2013-10-30
    Rated 4 out of 5 by from Good Product Good product for the money. Not a super polarizer but ok.
    Date published: 2015-01-15
    Rated 5 out of 5 by from A real photographer aways has one ! This filter never comes off except at night.....that's how useful it is! Develope the habit to always give your filter a twist to see how the scene changes; the sky, the water, buildings, people's glasses, auto windows, and sport scenes.Whether color or B/W, it can cause a dramatic affect! Can't go wrong with a Hoya filter.
    Date published: 2013-11-18
    Rated 5 out of 5 by from Best price quality ratio This Hoya polarizer easily and firmly mounts on Canon 35mm 2.0 lens, adding a crisp yet fully fluid effect. Besides removing polarized light, it adds contrast to the picture without taking too many steps of exposure. Finally it does not impair autofocus. Highly recommended
    Date published: 2013-10-29
    Rated 1 out of 5 by from Not a good polarizer filter I purchased this filter because I had heard that the company Hoya makes great Polarizer filters but they certainly weren't talking about this one. This filter has poor construction and constantly falls off the lens and it's very inconvenient when stacking other filters with this one. Also the polarizing effect isn't even that noticeable it's very slight and barely takes off reflections. Take it from me, you might want to skip this one.
    Date published: 2015-05-22
    Rated 5 out of 5 by from great product! I bought this with a new lens and it arived the day before a big snow. I took it out and really tested it with the strange lighting conditions you get in snow and go some beautiful results!
    Date published: 2014-02-10
    Rated 5 out of 5 by from Good choice I got this not only to filter the incoming light but to protect the lens, great results when you are taking shots of landscapes with blue sky since the color is better.
    Date published: 2013-12-30
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