The Government of Canada’s terminology and linguistic data bank.
The time duration between the half-open position and the half-closed position of the leaf-type shutter. 2, record 1, English, - effective%20exposure%20time
The effective exposure time is the period in which a given point on the film is exposed to the light during this passage. 3, record 1, English, - effective%20exposure%20time
Période de temps enregistrée entre les positions semi-ouverte et semi-fermée d'un obturateur central. 2, record 1, French, - vitesse%20d%27obturation%20effective
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