Asahi Pentax 645N II Operations Manual download pdf (Page 75)

ADVANCED OPERATIONS

Slow-Speed-Sync Shooting

Purpose

It is possible to balance the exposure of a fore-

ground subject against a dimly lit background by

using the flash to properly expose the foreground

subject and a slow-shutter-speed to expose the low

light background.

To set

With the Metered Manual Mode set

1. Turn the flash on.

2. Set the camera's exposure mode to the

Metered Manual Mode.

3. Select an appropriate shutter speed (lower

than 1/60 second) and aperture combination

for a correct exposure.

4. Release the shutter.

To set

With the Shutter-Priority AE Mode set

1. Set the camera's exposure mode to the Shut-

ter-Priority AE Mode.

2. Set the desired shutter speed.

• lf the aperture in the viewfinder blinks, a correct

exposure will not be obtained for the background.

Adjust the shutter speed until the blinking stops.

3. Turn the flash on.

4. Take the picture.

• lf the power is on before the desired shutter

speed is selected, the proper exposure for the

back-ground will not be obtained. Be sure to

select the shutter speed before the flash is turned

on.

• ln the slow-speed-sync shooting, use of a tripod is

recommended to prevent camera shake.

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Asahi Pentax 645N II Operations Manual Page 75