Manual flash metering, A dditional inf orma tion – Sony HVL-MT24AM User Manual

Page 55

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HVL-MT24AM_GB 2-889-493-01 (1)



A

dditional Inf

orma

tion

Manual flash metering

Flash-subject
distance

A

pe

rtu

re

Flash power line

Flash power line

1/1
1/2 (1/1)
1/4 (1/2)
1/8 (1/4)
1/16 (1/8)
1/32 (1/16)
1/64 (1/32)

(1/64)

1/1
1/2 (1/1)
1/4 (1/2)
1/8 (1/4)
1/16 (1/8)
1/32 (1/16)
1/64 (1/32)

(1/64)

The following explains how to obtain the aperture using the two twin flash units

with a power level of 1/1 at 1.5 m flash-to-subject distance and at ISO 100.

1 Draw a vertical line upwards from the flash-to-subject distance until it reaches

the flash power line that corresponds to the set power level ().

2 Draw a horizontal line leftwards from  until it reaches the vertical ISO line

corresponding to the camera used ().

3 Draw a diagonal line from  upwards and leftwards. The result indicates the

aperture that will provide the proper exposure ().

In this case, the proper exposure can be obtained by setting the camera’s aperture

to f/16.

 The figures in parenthesis are employed when only one twin flash unit is used.

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