Hoya 72mm HRT Circular-Polarizer UV Filter

Hoya 72mm HRT Circular-Polarizer UV Filter

Hoya 72mm HRT Circular-Polarizer UV Filter

B&H # HOCPHRT72 MFR # A-72CRPLHRT
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Product Highlights

  • Combination UV and Circular Polarizer
  • 2.5-2.8x Filter Factor, 1.3-1.5 Stops
  • Helps to Eliminate Reflections and Glare
  • Reduces Haze in Landscapes
  • Greater Color and Tonal Saturation
  • Blocks Ultraviolet Light
  • Reduces Bluish Cast of Daylight
  • Non-Coated, Optical Glass
  • Aluminum Frame
  • 72mm Front Filter Threads
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  • 1Description

The Hoya 72mm HRT Circular-Polarizer UV Filter is designed to block ultraviolet light and reduce the bluish cast of daylight while also helping to eliminate 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 filter with polarizing capability 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 offers approximately 98% average light transmission due to its High-Rate Transparency polarizing film. It is constructed from optical glass and precision milled aluminum frames.

Blocks UV light and reduces bluish cast of daylight.
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.
High-Rate Transparency polarizing film helps provide approximately 98% average light transmission.
2.5 to 2.8x filter factor reduces exposure by 1.3 to 1.5 stops.
Constructed from optical glass and precision milled aluminum frames.
Plastic filter case for storage and transport.
UPC: 024066051684
In the Box
Hoya 72mm HRT Circular-Polarizer UV Filter
  • Filter Case
  • Limited 1-Year Warranty
  • Table of Contents
    • 1Description
    Filter Type Circular Polarizer
    Filter Factor 2.3 - 2.8 (1.2 - 1.5 Stop)
    Shape Circle
    Circular Size 72 mm
    Front Accessory Thread / Bayonet 72 mm
    Filter Material Glass
    Coatings None
    Packaging Info
    Package Weight 0.18 lb
    Box Dimensions (LxWxH) 4.3 x 3.5 x 0.6"
    72mm HRT Circular-Polarizer UV Filter is rated 4.5 out of 5 by 10.
    Rated 5 out of 5 by from Great product for a decent price I bought this filter because it wasn't the cheapest and it wasn't the most expensive. I felt like it was a good middle of the road choice, and it turned to be a great product. Pictures taken with the filter are much crisper and the colors are definitely more vibrant and saturated. Haze is also cut down, so it's great to use in a city/urban setting where smog may affect your picture. The metal parts are machined very well, so it screws on nicely and seems to stay tight. I also like the arrow on the filter which shows you the home position - this is very useful to take pics with the filter still installed, but not filtering. No complaints so far!
    Date published: 2017-09-26
    Rated 5 out of 5 by from Very usable polarizer I purchased this with an Olympus 12-60mm zoom and chose the HRT because although I normally carry a polarizing filter with me I rarely use one even when the effects on colours and sky would enhance my subjects because of the light loss. I was surprised at how much extra light is transmitted through the HRT and I still gained the skies and colours I like and I'm sure the built in UV filter can't hurt. This filter will be used much more often than my standard polarizer and I am contemplating getting another for my 70-300mm. I recommend anyone contemplating a polarizing filter to spend the bit extra as you will get extra use out of this filter. I love the thin profile - no danger of vignetting at the wider end.
    Date published: 2011-07-04
    Rated 4 out of 5 by from True-blue skies, but fiddly threads The 72mm Hoya HRT polariser is a nice compliment to my Sigma 18-250 OS HSM lens on my Nikon. It makes walking around shooting on a sunny day a more rewarding experience. At the right angle, I can get the dramatic sky blues we see in ads and in lower light conditions, it still manages to capture details older polarisers miss. The one drawback is the threading on the polariser for attaching and removing it. They are too smooth and thin to easily grip. I've had to use an elastic band take it off an on at times.
    Date published: 2010-06-22
    Rated 4 out of 5 by from One filter for two purposes. This filter eliminates the need to stack a UV and a Circular Polarizer. It should eliminate vignetting caused by stacking. While there were some reviews indicating a problem with the shallow thread depth, I find no such problem if you thread the filter on carefully. The front thread wil hold a lens cap with no problem. I have not yet used this filter in photo taking, but past experience with Hoya filters has been excellent. The only drawback I see with this filter is a lack of multicoating, and it does not appear that Hoya is making this filter in an HMC version at this time.
    Date published: 2013-02-21
    Rated 5 out of 5 by from Hoya quality since the 70s Using a polarized filter s an easy way to improve your sky colors to a rich dark blue. A polarized filter also does away with the reflection you get from water and allows you to see through the reflection to what is being hid. Hoya has always provide me with top quality at a reasonable price.
    Date published: 2015-10-25
    Rated 3 out of 5 by from Great glass, fair hardware Glass is great quality - cuts the glare and makes the colors pop as promised. I am nervous about the filter not being threaded tightly enough to not fall off the lens. I find that I have to be extra careful to not unscrew the filter while adjusting the lens in the field. My solution has been to only turn the polarizer in the direction that tightens the filter. Hoping I don't absentmindedly turn the wrong way. Wish there were a way to lock it into place (besides tape).
    Date published: 2011-09-01
    Rated 5 out of 5 by from Great product, I would buy it again. This filter works great. Turns smoothly and is easy to focus. The lens cap fits on it also. I have always purchased Hoya filters for my lenses because of their quality. Anyone who purchases this filter will be satisfied with its performance.
    Date published: 2012-06-26
    Rated 4 out of 5 by from Does the job Easy to screw on. Tedious to unscrew. Does the job, though - perfectly well
    Date published: 2017-02-24
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