Manual ash (M)
Normal TTL ash metering automatically adjusts the ash intensity to provide
the proper exposure for the subject. Manual ash provides a xed ash intensity
irrespective of the brightness of the subject and the camera setting.
I
n ma
nual ash mode, the maximum ash power is when the manual ash
control is set to 1/1. Each step of the ash power level corresponds to one
aperture stop. Changing the setting by one stop, for example from 1/1 to 1/2, is
equivalent to decreasing the aperture one stop, for example from f/4 to f/5.6.
Man
ual ash can only be used when the camera is in the M mode. In other
modes, TTL measuring is automatically selected.
As ma
nual ash is not aected by the reectivity of the subject, it is convenient
for use with subjects with extremely high or low reectivity.
TTL ash metering Manual ash metering
1 Select M mode on the camera.
2 Press the TTL/M/Test button to light on the M (manual-
ash control) lamp.
e modes change in the following order. (Test ash (p. 40), Modeling ash
(p. 41))
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