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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. ...

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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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Adaptor rings fit onto the lens to accommodate the filter holder or lens shade. Once the ring is in place the holder clips into place using a smooth, quick release spring loaded mechanism. Sturdily constructed with an aluminium screw thread, the adaptors are available in both standard & wide angle configurations. Special or non standard sizes can be made to order. Wide-angle adaptor rings are designed so that the filter is placed as close as possible to the front element of the camera lens, & should be used when vignetting is encountered with a standard adaptor ring. ...

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