Some filters are used to remove certain types of light from pictures.
When choosing between a 67 mm circular polarizing filter and a 67 mm ultraviolet haze filter with multi-resistant coating for your camera lens, consider what types of pictures you will be taking. Both are designed to filter unwanted light out of your pictures, but the polarizing filter is much darker than the UV haze filter, and should only be used outdoors in bright sunlight.
Polarizing Filters
Polarizing filters eliminate reflected light from a picture, acting like sunglasses for your camera lens. They are used outdoors to create darker skies and rich colors in landscapes. They can also remove the sun's glare from water. Polarizing filters come in two types: linear and circular. Linear polarizers let in light from one direction; circular polarizers from multiple directions. Circular polarizers are more expensive, but are recommended for auto-focus lenses.
UV Haze Filters
Ultraviolet haze filters with multi-resistant coating strip ultraviolet light and haze from pictures. This prevents lens flare, such as those dappled rays and spots you get shooting into the sun. These filters have a slight yellow tint to them to remove the bluish cast of haze. You probably won't notice the tint in pictures. Because UV haze filters are relatively inexpensive, photographers often use them to protect their lens glass from dirt, smudges and damage from flying objects.
Filter Sizes
A 67 mm filter is designed to fit on a camera lens that is 67 mm in diameter. Lens come in varying diameters, and you can check the front of your lens for the size. It's the small number followed by a circle with a lens through it. Because most filters screw into the lens thread, so the filter is secured on top of the lens glass, it's important to get the the correct size.
Filter Costs
As of the date of publication, a basic 67 mm mult-icoated UV haze filter costs about $15. Higher-quality and more expensive options are also available. A circular polarizing filter for the same lens is much pricier, starting at about $45. If you plan to shoot pictures with an extreme wide-angle lens, look for a circular polarizing filter with a low-profile design. Without that feature, the far edges of your wide-angle pictures could be polarized unevenly.
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