The standard specifies how speed ratings should be reported by the camera. If the noise-based speed (40:1) is higher than the saturation-based speed, the noise-based speed should be reported, rounded downwards to a standard value (e.g. 200, 250, 320, or 400). The rationale is that exposure according to the lower saturation-based speed would not result in a visibly better image. In addition, an exposure latitude can be specified, ranging from the saturation-based speed to the 10:1 noise-based speed. If the noise-based speed (40:1) is lower than the saturation-based speed, or undefined because of high noise, the saturation-based speed is specified, rounded upwards to a standard value, because using the noise-based speed would lead to overexposed images. The camera may also report the SOS-based speed (explicitly as being an SOS speed), rounded to the nearest standard speed rating.
The standard specifies how speed ratings should be reported by the camera . If the noise - based speed ( 40:1 ) is higher than the saturation - based speed , the noise - based speed should be reported , rounded downwards to a standard value ( e.g. 200 , 250 , 320 , or 400 ) . The rationale is that exposure according to the lower saturation - based speed would not result in a visibly better image . In addition , an exposure latitude can be specified , ranging from the saturation - based speed to the 10:1 noise - based speed . If the noise - based speed ( 40:1 ) is lower than the saturation - based speed , or undefined because of high noise , the saturation - based speed is specified , rounded upwards to a standard value , because using the noise - based speed would lead to overexposed images . The camera may also report the SOS - based speed ( explicitly as being an SOS speed ) , rounded to the nearest standard speed rating .
What is another speed that can also be reported by the camera?
What is another speed that can also be reported by the camera ?
SOS-based speed
SOS-based speed