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H4D

The H4D can be used together with most fl ash units in manual mode. However, to make

use of a TTL automatic function, you must ensure the fl ash unit is compatible with the

SCA 3002 system. Connection is either by the PC socket or by the hot shoe (see warning

note below).
The viewfi nder houses an integral fi ll-fl ash with a guide number of 12 and features OTF/

TTL fl ash control. This unit is capable of providing enough illumination for many fi ll fl ash

functions outdoors as well as simple indoor shots at shorter distances.
Flash output can be adjusted separately from ambient exposure for optimum control.
Separate fl ash units can be used in dedicated mode when connected to the hot shoe

if the unit is compatible with the SCA3002 (Metz) system using a Hasselblad SCA3902

adapter. This provides a cable free link up for information transfer.
Flash synchronisation can be set to normal or rear (the beginning or end of a capture).
Please see the relevant user manuals for information regarding separate fl ash units.



Do not attempt to connect a fl ash unit dedicated for use with another camera brand via

the hot shoe. The fl ash unit and / or camera could be damaged.

General

When using the A or S setting together with fl ash, the exposure requirements of the

camera will dominate which might produce slow shutter speeds indoors, for example,

requiring the use of a tripod. If, on the other hand, you select P or Pv instead, then a

shutter speed of 1/60 or faster is automatically chosen by the camera enabling you to

hand hold.
When using fl ash close up or when using larger aperture settings, remember that the

fl ash unit’s output has a specifi c minimum duration which might still be too great for

correct exposure. Read the unit’s output specifi cations for further information regarding

any potential restrictions.
You can use the fl ash metering capability with external fl ash units of all kinds (TTL fl ashes

must be set to Manual mode).
Rear sync is a useful feature used either for eff ect or to produce a more ‘natural’ look

when combining long exposures involving light trails and fl ash.
When using suitable dedicated units (compatible with SCA3002), adjustments are made

automatically and governed by the settings on the camera. This applies to whether the

fl ash unit is set to TTL or whether it is set to its own integral metering system (A).
Control of either the integral fl ash unit or separate SCA3002 compatible fl ash unit re-

garding the two functions, exposure compensation and shutter sync, is via the grip. The

fl ash measure function can be used for fl ash units that are not SCA 3002 compatible or

for SCA 3002 compatible units at manual setting.



Only fl ash units specially adapted for use with the H4D should be connected to the hot

shoe on the camera.



If using fl ash/strobe as the main light source and 1/800s shutter speed, remember to turn

off the True Exposure facility (Custom Option #13).

To change the balance between fl ash output and camera exposure requirements to pro-

duce a variety of eff ects, use the exposure compensation function. For various long ex-

posure eff ects use the sync function. To make fl ash exposure tests use the fl ash measure