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[Example] :
If the flash zoom position is 50mm, subject
distance (between the SEF-54PZF and sub-
ject)is 4 m, and ISO is 100, the calculation will
be as follows:
① With flash output [1/1], the Guide No. will
be 45(according to the Guide No. table).
Guide No. 45
② Aperture =
Subject distance 4 m
= Approx. 11 (f/No.)
●Refer to page 59 for the guide number table.
5
Confirm that the subject is within the effective
flash range and the ready lamp is lit.
Then take a picture.
30
=11.25
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