Pentax AF 540 FGZ II Guida Al Funzionamento

Manual Flash

Turn on the power switch (ON).

Press the flash mode button (MODE) to display M on the

LCD panel.

• You can set the flash output from 1/1 to 1/256. (Refer to

Press the zoom button (ZOOM) to set the zoom position

(flash coverage angle).

• The setting method differs according to your camera and

Set the camera’s lens aperture according to the distance to

the subject.

• Refer to page 58 for the guide number table.

Confirm that the subject is within the effective flash range

and the Ready lamp is lit. Then take a picture.

Example:

If the flash zoom position is 34 mm, subject distance

(between this flash unit and subject) is 4 m, and sensitivity

is ISO 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).

2 Aperture = Guide No. 45 / Subject distance 4 m =

11.25 Õ Approx. 11 (F/Stop)

* The numbers used in this example are for K series (APS-C).

Manual flash

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