These professional quality filters are made in Japan using precision optical glass that is carefully smelted & blended to yield perfect optical results. Hoya has applied the same care & precision to the multi-coating process, using an enhanced Super Multi-Coating (IS-HMC) formula to greatly reduce or eliminate reflections off the surface of the glass. These coating are overlaid with a clear water & stain resistant coating that is easy to clean. This makes for easier care & handling of the filter in the field. All coating layers are applied in a furnace to bond the coating to the glass. All Hoya REVO filters have very low-profile aluminium filter frames to house the glass & keep it perfectly parallel to the plane of the CCD or COS sensor while providing enough rigidity to hold up to years of use. The low-profile frame also makes the filters compatible with a wide array of super & ultra wide-angle lenses. Hoya REVO series filters are available in sizes from 37mm to 82mm.   ...

Light rays which are reflected by any surface can become polarised so polarising filters are used to select which light rays enter your camera lens. CIRCULAR PL filters allow you to remove unwanted reflections from non-metallic surfaces such as water, glass etc. They also enable colors to become more saturated & appear clearer with better contrast. This effect is often used to increase the contrast & saturation in blue skies & white clouds. HOYA's polarising filters do not affect the overall color balance of a shot. Using the CIRCULAR PL filter, reflections & glare can be reduced significantly from non-metallic surfaces. A camera angle of 30 degrees from the reflecting surface (glass, water, etc.) is ideal for maximum effect. ...

This is the ultimate in clear filters. It will not affect the color balance or performance of your lenses in the slightest. However, constant use will protect your valued lenses from expensive front element damage which could be caused by dirt, knocks or ...

Calumet's Multi-Coated filters are a must for modern digital stills & camcorder lenses, particularly where lens hoods or compendium shades cannot be used.  These outstanding filters offer revolutionary performance in light transmission, colour balance & flare control. Calumet Multi-Coated Filters minimise flare & ghost imaging in situations where unwanted light falls on the filters surface.  The result is an average light transmission of over 97%, producing sharp contrast & well-balanced colour. Multi-Coated filters are available in a wide range of filter types & are highly recommended for maximising the performance inherent in multi-coated lenses. Skylight: Provides a similar level of UV reduction & lens protection to our UV filter, but its subtle pink tint adds warmth & enhances colours. ...

Hoya Slim Circular Polarising Filter with a 77mm filter thread. Circular Polarising Filters remove unwanted reflections from non-metallic surfaces such as glass & water. They also increase contrast & colour saturation, which is great for blue skies. Circular Polarisers do not interfere with autofocus or TTL light metering. The new Slimmer frame allows these filters to be used with wide angle lenses. ...

Calumet 77mm UV Digital Super Multi-Coated Filter Calumet's Super Multi-Coated filters are available in UV/P & Circular Polariser only. Calumet Digital Super Multi-Coated (SMC) filters are mounted in slim-profile rings to work with wider-angle digital lenses & are Super Multi-Coated for enhanced durability & superior light transition. Calumet Digital SMC filters have extra layers of multi-coating which result in an enhanced average light transmission of 99.7% & provide increased resistance to flare even at wide apertures. UV/ Protection: provides basic reduction of bluish casts that can be caused by UV light & provides essential lens protection. Designed to be left on at all times. ...

Black-&-white films are also sensitive to the effects of invisible UV light. A high percentage of UV light, present in a clear view at the sea or mountains, results in a hazy & washed out picture. Filter factor is 1.0. ...

Black-&-white films are also sensitive to the effects of invisible UV light. A high percentage of UV light, present in a clear view at the sea or mountains, results in a hazy & washed out picture. Filter factor is 1.0. ...

Calumet 77mm UV MC Filter Calumet's Multi-Coated filters are a must for modern digital stills & camcorder lenses, particularly where lens hoods or compendium shades cannot be used. These outstanding filters offer revolutionary performance in light transmission, colour balance & flare control. Calumet Multi-Coated Filters minimise flare & ghost imaging in situations where unwanted light falls on the filters surface. The result is an average light transmission of over 97%, producing sharp contrast & well-balanced colour. Multi-Coated filters are available in a wide range of filter types & are highly recommended for maximising the performance inherent in multi-coated lenses. UV/ Protection: provides basic reduction of bluish casts that can be caused by UV light & provides essential lens protection. Designed to be left on at all times. ...

The Tiffen Variable ND filter is a unique, versatile & flexible tool, affording you the convenience of using several Neutral Density filters all in one. Primarily used as a photographic tool for controlling depth of field & exposure, the Variable ND is being sought in the video market as well because it is fast, easy to use, small, lightweight, & does not require additional accessories such as a matte box. Provides 2 to 8 stops of light control Thin profile ring
- 9mm Wider outer optic to help reduce vignetting at wide angles Comes in Tiffen Professional packaging with padded black nylon pouch Made with high quality optical glass using Tiffen's Color Core™ technology Made in the USA 10-year warranty Why use a Variable ND Filter? Neutral density filters reduce the amount of light going through the lens into your camera. By reducing the light you are able to achieve the following: • Allows the use of slow shutter speeds, with high speed films or digital cameras, to record movement/image blur in subjects such as waterfalls, clouds or any fast moving subject • Gives you full control over your depth of field. You are able to decrease depth of field by using wider apertures, which helps separate subjects from their background (subject matter in focus while your background is blurred) • means that you can shoot high speed film (above ISO 400) in bright outdoor situations by reducing effective ISO • Enables cine & video cameras (which have fixed shutter speeds) to film subjects such as snow, sand or other bright scenes which could cause overexposure
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