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Most flash units are suitable for use with the 503CWD. However, for the sake of safety, care should be
taken when using studio flash units (strobe) and tethered to a stationary computer.
Portable units
Attach the flash sync cable to the lens (or camera body if you ae using the 503CWD digtial
back on a Hasselblad 200 series model) and make the appropriate settings according to
the unit.
This also applies when using studio units when:
a) tethered to a computer not connected to a regular electricity supply system.
or
b) tethered to an Imagebank or laptop computer running on batteries.
With studio type flash units (strobe) and tethered to a computer
If the 503CWD is tethered to a computer that is connected to a regular electricity supply
system as well as a studio flash/strobe unit that is also connected to a regular electricity
supply system/generator system, then make the following connections instead:
a) Connect the
flash sync input cable
from the sync contact (PC connector) on the lens
to the
flash sync IN terminal
on the back.
b) Connect the
flash sync output cable
from the
flash sync OUT terminal
on the back
to a regular flash sync cable that is connected to the unit.
TTL function
The reflective characteristics of the digital sensor are different to film surface charac-
teristics for which the TTL function was originally designed. However, by changing (in
effect, ‘tricking’) the setting, TTL exposures can be made. Proceed as follows:
Move the ISO selector on the 503CWD so that is becomes approximately 1⅔ f/stop higher
than the ISO setting on the digital back. Therefore, for example, when the back is set at
50ISO, the ‘film speed setting’ on the camera should read 160ISO, and so on. Testing for
the most suitable compensation that suits you is recommended.
Viewfinder indicator
Flash operation and flash battery−check are indicated by a red light, located under the
left edge of the focusing screen. It is operative only when a dedicated flash is connected
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Flash / Strobe
The 503CWD can be used together with most studio
or portable units.
It also offers a TTL function if required.
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503
CWD