Polarizer
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Tele-Polarizers
By George Lepp
Q) Would you recommend the use of a drop-in polarizer with the Canon 400mm Æ'/2.8 for wildlife or landscape photography?
Polarizers filter accomplish three main objectives for photographers. First, a polarizing filter cuts out the glare in a scene. Mid-day glare on plant leaves can be removed by simply using a polarizing filter.
Polarizers come in many different diameters to accommodate the many different size lenses on the market. Just make sure you buy one that covers the glass part of the lens.
The polarizer is simultaneously one of the most useful as well as one of the most annoying filters around. Read on for the full scoop.
Using Polarizers
Left Image: 35mm SLR, 50mm f-2.8 macro lens, Kodachrome 25, Polarizing filter to make the red stronger, Bogen tripod and ball head. Centerweighted metering, exposure not recorded.
Circular Polarizer
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Polarizer
When shooting fall colors, it is always best to glance through a polarizer filter to see if it has any effect. Often, a polarizer will remove glare and increase the saturation of fall colors.
Polarizers are placed in front of your camera lens, and work by filtering out sunlight which has been directly reflected toward the camera at specific angles.
POLARIZERS
The polarizer is the single most useful camera filter money can buy. It’s versatile, easy to use and will undoubtedly improve your photographs.
Polarizers
Commonly, polarizers are used to deepen blue skies in outdoor photographs. They also do a great job reducing reflections when shooting through glass or water at an angle.
Polarizers
Even though you won't get vignetting, you have to be careful using a polarizer on an ultrawide lens.
Dunes, Death Valley, or Why You Have to be Careful with a Polarizer on a 12 mm lens
(Nikon 12-24 at 12mm on D200) ...
Polarizer
I've thrown away most of my filters because their effects can be easily replicated in Photoshop, but not my trusty polarizer. A polarizer is most often used to darken the blue hues in the sky relative to the rest of the image.
Polarizer - This is a type of filter that lets the user block out glare and reflections, or in other cases increase contrast.
Posterization - Process that reduces the number of tones in an image making it look flat.
Polarizer. (Polarising Filter). A filter for eliminating glare and reflections which attached to the front of your lens (normally just SLR's).
Polarizer. Gray-looking filter, able to darken blue sky at right angles to sunlight, and suppress reflections from (non-metallic) surfaces at angles of about 30°.
Polycontrast. See Variable contrast paper.
Polarizer
The main point of using a circular polarizer instead of a linear polarizer is to ensure that autofocus and TTL metering would work properly with your reflex camera (although this might not always be necessary).
Use a polarizer. Polarizing filters are available for most SLR lenses. When used outdoors, they can dramatically improve images by reducing reflected light. On sunny days, skies will be a much deeper blue.
[edit] Polarizer
A polarizing filter, used both in color and black and white photography, can be used to darken overly light skies. Because the clouds are relatively unchanged, the contrast between the clouds and the sky is increased.
Polarizers reduce glare by acting like sunglasses for your camera.
The only issue with polarizers is that they reduce the total light coming into your camera (just like sunglasses do).
Polarizers are also handy for removing reflections from nonmetallic surfaces, like glass or water. If you're trying to shoot a store-window display, or little fish in a tidal pool, just turn the filter until the reflections vanish.
Polarizers are useful for reducing glare from water and other reflective surfaces. These create a more well-balanced and beautiful picture.
Polarizer Filter
Circular Polarizer
For Waterfall and Vertical Landscape Scenery with a central focal point ...
A polarizer is typically made from a thin sheet of plastic polarizing material laminated between two circles of clear glass.
A polarizer can do it's best work when the lens is pointed 90 degrees away from the light source. In all of these next examples the light source is the sun.
A polarizer cuts glare off waxy or wet foliage, improving color contrast and saturation. But be careful when using one on a wide-angle lens if your frame includes the sky-uneven polarization can leave parts of the sky darker.
Most polarizers are in a rotating mount so that you can rotate them on the lens and see the effect.
It can help if you put a small piece of tape, white paint/white nail polish on the outside, rotating ring.
Circular polarizers solve this problem by adding a de-polarizing layer to the back of the filter. This causes the light to be de-polarized, ie. it does no longer oscillates in a single direction.
Note that a polarizer will act as about a 2 stop ND filter, so if you have a polarizer, get a 3 or 4 stop ND so you have more options.
5 - InfraRed Filters ...
A circular polarizer can be used to have richer colors and to avoid reflections and glare in your images. This is most especially helpful when shooting outdoors.
I often use a polarizer and neutral graduated filters. These filters rotate to different positions, depending on the effect desired. The recent trend to deep, scalloped lens hoods (tulip shaped) present a problem with these filters.
Linear and circular polarizers: Sky, water and foliage in landscape photos
Natural density: Waterfalls, rivers under bright light
Graduated neutral density: Dramatically lit landscapes
UV/haze: Improved clarity in any situation ...
POLARIZER-An optical device for converting unpolarized, or natural light, into polarized light.
Also, consider a Kaesemann Circular Polarizer.
Circular Polarizer to remove reflections ( not metallic-reflection ), like water, shiny-leaves, etc, ...
It surpasses the Polarizer as the most useful filter landscape photographers can keep in their bag. These great little tools come in many shapes, strengths, and sizes. For the most versatility, I recommend the square types that fit in a lens mount.
When using a polarizer with wide-angles and large areas of blue sky, you should be aware of uneven polarization across the sky, where some parts are a deeper blue than others.
One filter I use a lot is a circular polarizer. “Polarizers' remove polarized sunlight and are great tools for taking the glare off the snow or other reflective surfaces and bringing out deep saturated colors.
I've pretty much stopped using any kind of filter on my lenses, except for a circular polarizer, when needed, mainly because it pretty much works against any kind of decent hood you may have on your lens.
how light hits the camera, for example, there are a number of add-on filters that can either soften the photo, provide slight blurring around the edges to capture a sensitive mood in portraits, add light flares for a touch of drama, or a polarizer ...
I once lost a circular polarizer that I had rotated incorrectly, and I've heard of much worse. Camera equipment can be replaced, but the last thing you want departing the aircraft is you.
A polarizing filter ("Polarizer" or "Polarizing screen") is an adjustable filter, with an inner ring that screws onto the lens and an outer ring that can be rotated. Turning the outer ring reduces or increases the filter's effectiveness.
POLARIZING FILTER - A polarizing filter ("Polarizer" or "Polarizing screen") is an adjustable filter, with an inner ring that screws onto the lens and an outer ring that can be rotated.
Filters range from circular polarizers, warming filter, star filters, soft focus filters, and many colored filters to change the over all color of a photograph.
Filters often used in Black and White Photography and what types of effects you may see ...
Many landscape photographers avoid the use of any filter other than a polarizer and perhaps a haze filter. Others use an arsenal of different filters to enhance the natural appearance of a scene.
A high speed shutter using a pair of crossed polarizers, between which is a glass block within a coil. When a voltage passes through the coil, the plane of polarization changes, allowing light to pass through the second polarizer.
-Farraday shutter - high-speed shutter using a pair of crossed polarizers, between which is a glass block within a coil.
If your camera allows for the use of filters, purchase a polarizer. This will help you render deep blue skies against bright white clouds, richly contrasting colors, and other wonderful effects with a simple twist of the wrist.
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When shooting landscapes, you will also see the sky getting a much darker and richer blue color when using a polarizer filter. The effects of a polarizer filter can not be done with editing software.
A filter used in photography to polarize the light entering a lens. A polarizer allows light in from one direction as opposed to multiple directions caused by reflection and/or glare
Port: ...
77mm Moose filter (81a + Circular Polarizer) + 77mm adapters for lenses as needed ...
a cheap but multi-coated UV filter for it (Vivitar Series 1 is a good variety), and a polarizing filter, also coated or multicoated, for better colors in sunlight and avoiding or accentuating glare from it on glass and water (a "circular" polarizer ...
I use coated UV filters, mostly as protectors for the front elements of my lenses, and I like to use circular polarizer when appropriate for some of my outdoor photography. I also have a set of split neutral density filters.
Polarizing Filter/Polarizer Usually indicates a linear or circular polarizing filter, which eliminates various degrees of reflected light from glass, water, plastic, paper and similar surfaces. Nikon makes circular polarizing filters.
Polarizers are the most popular option. These filters work pretty good to enhance the blue sky or shiny objects like the sea or other non-metallic object. The effect is maximized at a position 90 degrees of the sun.
As long as the filter (say a polarizer, or warm-up filter) you're placing over the main lens also covers the light meter you will generally have no problems (as it will cut the level of light evenly for both).
 See also: Camera, Light, Photograph, Photography, Digital
  
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