reversal film

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reversal film

[rivur′səl]
(in radiology) a reverse-tone duplicate of an x-ray image, showing black changed to white and white to black. It is produced by exposing single-emulsion subtraction film through a standard x-ray film. Also called diapositive, positive mask.
References in periodicals archive ?
Kodak Ektachrome E200 and Fuji Provia 400F slide films are extremely well suited for push processing.
I usually use color slide film, but the old buildings of the fort often tempt me to shoot some black and white, especially if the sky has dramatic clouds.
The manufacturer is also unveiling new packaging designed to help consumers more easily distinguish between Kodak's three film lines: Royal Gold print film, Elite slide film and Kodachrome slide film.
Photographs were made on either Kodak EPN, an ISO 100 speed daylight slide film, or Kodak ET, and ISO 160 speed tungsten slide film.
An alternative to bringing customers and prospects into your foundry is to take the foundry to your customer in the form of an effective slide film presentation.
If you've ever shot a roll of medium-format slide film in a Hasselblad or a Mamiya, you know the joy of complete control.
The majority of the images in Griffin's current show were shot on slide film from 1985 to 2006.
This 25-exposure filtered time-lapse sequence of the October 3rd annular eclipse of the Sun was made at roughly 5-minute intervals on a single frame of slide film.
Zoom lenses have always been a boon to people who use slide film.
Mr Griffiths, who captured the image on slide film using a Canon SLR camera, said: ``I spent a considerable amount of time around the lake waiting for the light and mist to evolve.