[10] Brief exposure to the chemical will not produce immediate or even any side effects other than the purple skin stains, but with more exposure, side effects will become more noticeable. It is also very poisonous and can cause burns.
A technique used by advanced printers to lower contrast by giving a brief exposure to the sheet of printing paper either before or after the image has been exposed to it.
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Taking pictures on a sunny day, for example, can easily mean extremely brief exposures of 1/60 to 1/1000 of a second. But what if you want to take really long exposure photographs - perhaps several minutes - at night?
Less than the blink of an eye. The film is so sensitive to light that that very brief exposure is all that it needs in order to see and record whatever was in front of the camera when the shutter was opened.
" Brief exposures (1/125 second or faster) will snare the shapes and patterns of the advancing or receding sea, while very long exposures (from 1/4 to several seconds with a tripod) will paint the shore and rocks with an impressionistic glossy sheen.
that comes in a variety of size and capacity configurations. The larger the card's capacity, the more digital pictures it can store. Repeating Flash A feature available in some flash units that fires the flash many times during a brief exposure.
 See also: Exposure, Photograph, Flash, Photography, Image
  
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