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filter factor

   Also found in: Wikipedia 0.01 sec.
filter factor [′fil·tər ‚fak·tər]
(optics)
The number of times the exposure must be increased when a filter is used on a camera, because the filter absorbs some of the light.


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The driver also provides for fine adjustment of delay factor, filter factor, and integration time in addition to simple Short, Medium, and Long settings.
Recall from "Filters -- Those That Blur," December 1996, I indicated filter factors are profoundly influenced by file size and resolution.
Assuming that we have properly used our 350 horsepower camera with a tripod, know which filter to use for what, have the filter factor figured correctly, have given up using one flash on the camera, and with the proper film in the camera, have pressed the right button, we have a film with a "latent image".
 
 
 
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