ExpoDisc Unveils New Color Balance Filter.MORGAN HILL, Calif. -- The ExpoDisc Digital White Balance Filter Provides an Easy, Inexpensive Way to Set White Balance for Photographers and Videographers ExpoDisc(TM) Inc., the pioneer in diffusion filters A diffusion filter is a translucent photographic filter used for a special effect. When used in front of the camera lens, a diffusion filter softens subjects and generates a dreamy haze. that allow photographers to fine-tune color balance In photography and image processing, color balance (sometimes gray balance, neutral balance, or white balance) refers to the adjustment of the relative amounts of red, green, and blue primary colors in an image such that neutral colors are reproduced correctly. and get accurate exposures without meters, gray cards or white cards, today announced the ExpoDisc Digital White Balance Filter. The new ExpoDisc filter is designed for professional photographers and videographers, and serious amateurs alike. The ExpoDisc Digital WB Filter is, in effect, a gray card in a lens cap, without all the hassles and inconsistencies of a gray card. It lets you read and set white balance before shooting, thus eliminating the need for post-capture color adjustments. The ExpoDisc filter works with film, digital cameras and digital video, and is available in six standard sizes from 58mm to 82 mm. Prices range from $79.95 to $159.95. The new ExpoDisc filter makes it possible to give the same, consistent white balance reference to an entire body of photographic work. It also allows photographers to set white balance in mixed lighting conditions. The snap-on disc is a neutral diffusion filter that gathers ambient Surrounding. For example, ambient temperature and humidity are atmospheric conditions that exist at the moment. See ambient lighting. light from 180 degrees and passively transmits 18% of it through to your camera's light meter. The resulting 'gray frame' accurately represents the colorcast col·or·cast v. col·or·cast or col·or·cast·ed, col·or·cast·ing, col·or·casts v.tr. To broadcast (a television program) in color. v.intr. To televise a program in color. of the light in which the photograph is being taken. From this gray frame, you then can set a custom white balance with your digital camera's menu that results in accurate color in Verb 1. color in - add color to; "The child colored the drawings"; "Fall colored the trees"; "colorize black and white film" color, colorise, colorize, colour in, colourise, colourize, colour almost all lighting conditions. Neutral tones become more pleasing with the ExpoDisc Digital WB Filter because all colors are brought into balance at the point of capture. Each filter is manufactured and individually calibrated cal·i·brate tr.v. cal·i·brat·ed, cal·i·brat·ing, cal·i·brates 1. To check, adjust, or determine by comparison with a standard (the graduations of a quantitative measuring instrument): to fall within 1/12th f/stop accuracy for exposure. That's 400% more stringent than the digital camera standard of 1/3rd f/stop, and even more accurate than handheld incident light meters, which must be within 1/10th f/stop. It comes with a card recording its exact density and color balance (+/- 3% of absolute neutral) as noted on the color analyzer analyzer /ana·ly·zer/ (an´ah-li?zer) 1. a Nicol prism attached to a polarizing apparatus which extinguishes the ray of light polarized by the polarizer. 2. for near perfect color balance. This results in a level of accuracy that is far more neutral than commercial gray cards, which can often be well off the beam. "ExpoDisc Digital WB Filter is an easy way to get great color balance and accurate exposures on the first shot for digital cameras and camcorders," stated Chris Stocker, ExpoDisc Vice President of Sales and Marketing. "Professional photographers love it because they don't have to hassle Hassle () is a location in Närke, Sweden, where a Celtic treasure was found in 1936. It comprises a large bronze cauldron which contained two Bronze Age swords of the Hallstatt type, a pommel of bronze, two bronze buckets with with meters or other devices for measuring light in the field, plus there's no need to go back to the studio for color adjustments." List prices range from $79.95 to $159.95. The web site is www.expodisc.com. About ExpoDisc ExpoDisc Inc., originally founded in 1980, is the pioneer in white balance filters. Its founder, George Wallace This article is about the American politician, former governor of Alabama and former presidential candidate. For other uses, see George Wallace (disambiguation). George Corley Wallace Jr. , originally designed the ExpoDisc for film as a means to transform the camera's internal light meter into an incident light meter. His daughter Diane Wallace later found that you cannot only meter perfect through-the-lens exposures, but that you can also use it for easy digital white balance. ExpoDisc Digital WB Filters are available online and at retail stores nationwide. |
|
||||||||||||
Printer friendly
Cite/link
Email
Feedback
Reader Opinion