Hasselblad 70480542 Separate flash unit connection and use, Flash measure of separate flash unit

H4D

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Red warning triangle and green LED flash symbol to left of viewfinder LCD display.

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FLASH

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ISO/WB	F
Save

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AE-LL

T i p

The ‘Low Flash’ warning can be turned off in Custom Option #26 if preferred.

5)If the settings were incorrect to match the output of the flash unit, the viewfinder display shows a red triangle alongside a flashing green ‘flash’ symbol plus a warning message - ‘Low flash’. The grip display will also show a warning message - ‘Low flash’.

Conventional measures should then be taken to correct the situation. (That is: move closer to the main subject, use a larger aperture setting or use a higher ISO setting).

Separate flash unit connection and use

Separate flash units can be electrically connected either by way of the hot shoe accessory holder (see previous warnings) on the top of the viewfinder or via a cord to the PC connection port on the left hand side of the camera body. Slave unit switches/ trans- mitters can also be connected similarly dependant on unit (see specific user manuals for details).

Keep the plastic safety cover in place in the hot shoe when not in use.

Flash measure of separate flash unit

You can measure the effect of an attached flash unit (with PC ­connected flash units and SCA3902 compatible flash units set to M mode), where the camera acts much as a flash meter would. The aperture setting can be adjusted and more trial exposures made until the information on the grip display is satisfactory.

To use flash measure:

1)Press the FLASH button on the grip to access the flash option screen.

2)Turn the rear control wheel until Flash measure appears.

3)Press Save (ISO/WB button) to access the flash exposure screen.

4)Make preliminary required aperture setting by turning the front control wheel.

5)Press the AE-Lbutton. The camera will close the aperture, raise the mirror and fire the flash. Light reflected from the

flash lit subject will be reflected off a white spot on the

auxiliary­ shutter to the meter sensor.

6)Deviations from a normal exposure are displayed as

differences­ in EV on the grip display and the viewfinder

display­ . If ‘high’ or ‘low’ appears, change the aperture accordingly and make a new test reading.

Change the aperture until Diff EV: 0 appears, or the desired amount of deviation from the normal exposure.

 Diff EV: Low signifies more than 2 EV under

 Diff EV: High signifies more than 2 EV over

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