Fr.: pose d'étalonnage
An exposure obtained with an instrument mounted on the telescope using an artificial illuminating source in order to calibrate the instrument.
osneheš-e târiki, nurdâd-e ~
Fr.: pose d'obscurité
osneheš-e žarf, nurdâd-e ~
Fr.: pose profonde
An exposure in which the detector shutter remains open for a relatively long time in order to bring out the weaker features of the observed object. In practice a deep exposure with a CCD detector is usually obtained from co-addition of shorter exposures.
1) osneheš; 2) nurdâd
Fr.: pose, exposition
1) The act of exposing; the fact or state of being exposed,
Verbal noun of → expose.
In photography, an instrument used to measure the intensity of light from a scene to be photographed and to indicate the camera lens and shutter settings required to expose the film correctly.
zamân-e osneheš, ~ nurdâd
Fr.: temps de pose
The length of time during which the receiver is irradiated.
Fr.: poses multiples
The division of a relatively long exposure into several successive shorter ones, e.g. to avoid detector saturation.
Excessive exposure of a detector, → over-expose.