Sony HVL-MT24AM - Manual (Page 40)

HVL-MT24AM_GB 2-889-493-01 (1)
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Test flash
You can try one test flash before shooting. Use test flash mode when using a flash
meter in manual-flash mode.
1
Press the TTL/M/Test button to turn on the test-flash lamp
.
Each time the TTL/M/Test button is pressed to change the TTL and M lamp
be sure to check that the appropriate lamp is on. (See page 33 for the display
sequence.)
2
Press the TEST button (test/modeling flash button) .
 With TTL flash metering, the test flash will fire at full power when the
TEST button is pressed.
 In manual flash mode, the test flash will fire at the selected power level
when the TEST button is pressed. When using a flash meter, use manual
flash mode.