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TTL
An abbreviation of “Through the Lens,” which represents a system to determine the
brightness of the subject by metering the light through the lens with the built-in expo-
sure meter of the camera.
TTL flash
A function to obtain the correct exposure for the main subject by firing the flash
regardless of the ambient light. By measuring the amount of the flash light reflected
from the subject, the camera stops light emission when the correct illumination level is
reached. This may possibly cause an imbalance in brightness between the main sub-
ject and the background.
Underexposure
A state in which the total exposure is insufficient when compared with standard exposure.
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Содержание FM3A
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