četvrtak, 27.10.2011.



Using A Circular Polarizing Filter

using a circular polarizing filter

    circular polarizing
  • (Circular polarizer) A polarizer is a device that converts a beam of electromagnetic waves (light) of undefined or mixed polarization into a beam with well-defined polarization. The common types of polarizers are linear polarizers and circular polarizers.

    using a
  • jigsaw puzzle is another metaphor commenly used for analysing cultural differences.

  • A porous device for removing impurities or solid particles from a liquid or gas passed through it

  • A screen, plate, or layer of a substance that absorbs light or other radiation or selectively absorbs some of its components

  • device that removes something from whatever passes through it

  • remove by passing through a filter; "filter out the impurities"

  • an electrical device that alters the frequency spectrum of signals passing through it

  • A device for suppressing electrical or sound waves of frequencies not required

using a circular polarizing filter - Sony HVR-Z5U

Sony HVR-Z5U 0.21x High Grade Fish-Eye Lens (72mm) + Circular Polarizing Filter + Nwv Direct Micro Fiber Cleaning Cloth

Sony HVR-Z5U 0.21x High Grade Fish-Eye Lens (72mm) + Circular Polarizing Filter + Nwv Direct Micro Fiber Cleaning Cloth

Lens: Magnification: .21x, Minimum focus distance 11.5mm, Focus control: Auto, Angle of view: 180 degrees, Group/Elements 2/3, Length 6.06" (154mm), Diameter 5.20" (132mm), Mount thread 72mm, Weight 2.7 lbs (1.26g) Filter: 72mm Circular Polarizer provides color and contrast enhancement. Reflected light often shows up as a whitish glare that washes out color in an image. A polarizing filter will correct this problem creating deep blue skies. It also removes glare from non-metallic surfaces such as windows and water. Fisheye lens may mount directly unto filter. Warranty Lens: Lifetime- Warranty Filter: 10 year Manufacturer. This Item Includes: Lens, Lens Cap, Lens Bottom Cover, Lens Case, Circular Polarizing Filter (72mm), Nwv Direct Micro Fiber Cleaning Cloth.

78% (15)

Polarizing Filter comparison

Polarizing Filter comparison

I finally got a chance to test out my new Hoya circular polarizing filter today at my nearest park.

This comparison is a great example of the result of using the filter on plants/trees etc on a sunny day.

The images are straight out of the camera with no post processing applied except for pasting them into a single file.

The top image is taken with no polarization and the bottom one is with polarization. You can see that the main difference between the two is the glare and reflection coming from the leaves on the non-polarized shot is simply not there on the polarized one. This allows the colour to be brought out in the leaves, increasing the overall saturation.

I would reccommend viewing this shot in Large to check out the clarity of the small white flowers running next to the bush. You almost cannot make them out on the non-polarized image.

Also, the shadows appear reduced in the polarized shot, bringing a bit more detail to those areas which is much more pleasant.

I will be testing my new toy out a little more over the next few days so I hope to have some more images up soon.

White Cliffs at dusk {HDR}

White Cliffs at dusk {HDR}

After visiting Hastings and Eastbourne the main reason I rode to Birling Gap was to test out my camera with the new Neutral Density ND 0.9 Circular Polarising Filter I had purchased. I had used this filter in quite a few of the shots I took in Hastings and for the Eastbourne Pier shot but the real test, and reason I bought this filter, was to take those lovely long exposure, HDR and landscape shots often seen in Explore. I still have much to learn about how to properly use this filter, but results so far I am delighted with!

using a circular polarizing filter

using a circular polarizing filter

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