Pentax 540FGZ - AF - Hot-shoe clip-on Flash Operating Manual page 21

Auto zoom electronic flash unit
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Flash output compensation
ISO / F (aperture) setting
Manual flash output
Flash output setting
Connected Flash Mode
P-TTL Auto flash
Auto flash (A)
Manual (M)
Wireless (W) master flash (M)
Wireless (W) slave flash (S)
3
After adjustment, press the select button (S) and
stop the blinking. Adjust the other items below
using the same procedure.
● When using multiple flash units set to P-TTL or
TTL Auto and adjusting the amount of light at the
same time, use the camera's exposure
compensation.
Adjustment Range
-3.0 to +1.0 levels (EV) (0.5 step increments)
ISO 25 to ISO 1600, F2 to F22 (with ISO100)
1/1, 1/2, 1/4, 1/8, 1/16, 1/32, 1/64
1/1, 2/3, 1/2, 1/3
19

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Af-540fgz

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