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Tuesday, July 1, 2008

Gadget Bag: Polarizers


If there ever has been a single piece of gear that all nature photographers agree is indispensable, it’s the polarizer

This Article Features Photo Zoom

Singh Ray
Singh-Ray Gold-N-Blue Polarizer
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Canon, Nikon and other lens manufacturers offer their own line of polarizers. One advantage of choosing the camera brand is guaranteed compatibility. A good example is the Nikon 52mm Circular Polarizer (C-PL3L), which drops into the filter slot on Nikon’s 200mm ƒ/2.0G AF-S VR lens. Similarly, the Canon 52mm Drop-In Circular Polarizing Filter (PL-C 52) is the best choice for its EF 300mm ƒ/2.8L IS USM and certain other Canon lenses.

For more than 60 years, B+W Filters has been known for outstanding quality as well as technological innovation. It was the first filter manufacturer in the world to offer multilayer coating that repels water and dirt. Its proprietary MRC coating is actually harder than glass, so it protects filters from scratches. Today, B+W offers more than 1,500 different filters, plus many related accessories. If forced to pick a single favorite, many photographers would choose a B+W warming polarizer, which combines the powers of a polarizer with the warming effect of an amber filter and is available in several configurations (81A, 81C, etc.).

Not every filter manufacturer can say it has been recognized by the Academy of Motion Picture Arts & Sciences with a Technical Achievement Award. But as a matter of fact, Tiffen has two Oscars® (and one Emmy®) in its trophy case. Using a Tiffen polarizer doesn’t guarantee you’ll get any closer to Hollywood, but it does mean you’re using a product with quality high enough to satisfy even the most demanding professionals. Tiffen polarizers are widely available in all popular sizes.

Primarily known in the motion-picture and video industries, Formatt has an excellent reputation as a manufacturer of high-quality filters. It makes linear and circular polarizers in a variety of sizes to fit just about any screw-in lens assembly. Construction incorporates the Formatt ACT methodology, which sandwiches a polarizing polymer between two pieces of high-quality Schott optical glass, which is then polished to extremely high tolerances.

Nikon 52mm
Nikon 52mm Circular Polarizer (C-PL3L)
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Hoya is one of the world’s largest manufacturers of optical glass, including glass used for camera lenses, eyeglasses and photographic filters. Its production process involves the introduction of raw elements and chemicals to molten optical glass to produce a filter of uniform coloration. Hoya never produces sandwich-type laminated or surface-colored filters. Hoya filters are likewise famous for being plano-parallel, which means that at every point, each side of the filter is perfectly flat and parallel to the side opposite it. Besides its full lineup of extra thin, Super Multi-Coated polarizers, Hoya also offers color polarizers in five combinations: yellow/blue, yellow/green, yellow/red, red/blue and red/green.

One of the best features of Singh-Ray’s polarizers and warming polarizers is what they call “Lighter, brighter.” In a nutshell, that means the filter factor is less, and consequently, it requires less exposure compensation. It also means more light is transmitted through the viewfinder, so it’s easier to compose and focus. A perennial favorite, the Singh-Ray Gold-N-Blue Polarizer allows you to gradually shift from warm, golden tones to stark, cold blues simply by rotating the filter. This filter is highly recommended for beach scenes.

Heliopan filters are more like jewels than camera accessories. They’re made from glass supplied by Schott (wholly owned by Carl Zeiss) and set in black anodized brass rings that screw in with precision and authority. They’re available in every conceivable size and configuration, including 13 different types of polarizers and special-effect filters. Heliopan thin circular polarizers accommodate ultra-wide-angle lenses as wide as 21mm.

RESOURCES
B+W (Schneider Optics)
(631) 761-5000
www.schneideroptics.com
Canon
(800) OK-CANON
www.usa.canon.com
Cokin
(410) 374-3250
www.cokinusa.com
Formatt Filters (Bogen Imaging)
(201) 818-9500
www.bogenimaging.com
Heliopan (HP Marketing Corp.)
(800) 735-4373
www.hpmarketingcorp.com
Hoya (THK Photo Products)
(800) 421-1141
www.thkphoto.com
Nikon
(800) NIKON-US
www.nikonusa.com
Singh-Ray
(800) 486-5501
www.singh-ray.com
Tiffen
(800) 645-2522
www.tiffen.com

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