Hoya 55mm alpha Circular Polarizer Filter

BH #HOCPA55 • MFR #C-ALP55CRPL
Hoya
Hoya 55mm alpha Circular Polarizer Filter
Key Features
  • Circular Polarizer Filter
  • 3 to 4x Filter Factor, +1.6 to 2 Stops
  • Helps to Eliminate Reflections and Glare
  • Reduces Haze in Landscapes
The Hoya 55mm 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.
In Stock
$24.90
Protect your Gear
Add a protection plan from $1.99
Gil R., B&H Expert

True Know-How

Ask Our Experts

800.606.6969

Hoya alpha Overview

The Hoya 55mm 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: 024066056160

Hoya alpha Specs

Filter TypeCircular Polarizer
Filter Factor3x (1.6-Stop) to 4x (2-Stop)
Circular Size55 mm Filter Thread
Front Accessory Thread / Bayonet55 mm
CoatingsNone
Filter MaterialGlass
Ring MaterialAluminum
Packaging Info
Package Weight0.1 lb
Box Dimensions (LxWxH)3.55 x 2.8 x 0.55"
See any errors on this page? Let us know

YOUR RECENTLY VIEWED ITEMS

question

I'm photographing paintings and need a lens that will help reduce specular highlights. Will this lens help for that type of correction and if so, will it fit a Canon EFS 18-55mm lens? Recommendations appreciated.Thanks.
Asked by: Anonymous
A circular polarizer will be an excellent tool to cut glare and other reflections, however you will need a circular polarizer with a thread of 58mm instead: http://bhpho.to/19MYXGe
Answered by: Heather S.
Date published: 2018-12-13

question

Will it fit my Sony A33 camera?
Asked by: valerie b.
That depends on the filter size of the lens you are using.
Answered by: Glenn N. Slik Expert
Date published: 2018-08-28

question

Front threads for filter stacking (and end caps)? If so, is this polarizer 55mm on both sides (I bought one here previously that had different sizes front and back). Thanks!
Asked by: Terry
The threads are the same size on both the front and rear of the Alpha series filters.
Answered by: Glenn N. Slik Expert
Date published: 2019-11-10
  • y_2021, m_9, d_18, h_20CST
  • bvseo_bulk, prod_bvqa, vn_bulk_3.0.19
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_3
  • loc_en_US, sid_900346, prod, sort_[SortEntry(order=HAS_STAFF_ANSWERS, direction=DESCENDING)]
  • clientName_bhphotovideo

Close

Close

Close