Hedler F Series Quick Start Manual

HEDLER
®
S y s t e m l i c h t
Thank you for chosing a Hedler F500A and your confi dence in the Hedler light system. Thank you for chosing a Hedler F500A and your confi dence in the Hedler light system.
Please, read the following technical information carefully before using the light unit. Please, read the following technical information carefully before using the light unit.
Codes are given in <Brackets>.

TECHNICAL DESCRIPTION

Light units of the HEDLER F range are designed for professional use. They are assembled by applying precision methods and tested individually
for function and quality. The fl ash light HEDLER F500A is provided with an integrated U-bracket and a friction brake and a 5/8" Quick-Lock
light stand attachment. After loosening the hex key screws by approx. 2 turns, the U-bracket can be moved back and forth in its keyway for
gravity adjustment and can be turned for either right or left hand use. On its front side, the aluminium housing holds the Borofl oat™ safety glass.
AdditionalIy there is the QuickFit adapter (compatible with Uni-Adapt system) for attaching refl ectors.
The fl ash light HEDLER F500A uses AC of 220 - 230 V and the modern Tungsten halogen bulbs 300 W as a pilot light. The fl ash light source is
a quartz-fl ash bulb with daylight quality and a maximum power of 500 Ws. A fan controlled by an automatic thermo switch is used for cooling.
The fl ash light HEDLER F500A has a Setting-Safe-Function (SSF). It is activated by pressing and holding down the TEST switch for more than 3
seconds. A signal tone indicates, that the SSF has been activated; this saves the settings even when the light unit it is switched off and on, and the
user will not lose their valuable information! An unwanted change of the light units settings isn´t possible. The function is deactivated by pressing
and holding the TEST switch for more than 3 seconds.

FLASH OUTPOWER and FLASHFUNCTIONS

The fl ash light output power of the HEDLER F500A is infi nitely adjustable by 5 f-stops. Reducing the fl ash light output power charging is
automatically done by the electronics, no manual fl ashing to unload the fl ash light unit is necessary.
Under maximum fl ash light output power, the longest fl ash duration lasts 1/550 second, and this allows the use of a 1/500 second as sync-time.
The „short" 1/500 second is extremely helpful while photographing portrait and fashion: it can prevent „blurred" photographs even when
working without a tripod. Please check your camera to fi nd out which sync-time can be used; if you use a shutter speed shorter than your
camera´s sync-time while using fl ash lighting, your photographs will be darkened or underexposed on their longer side.
The HEDLER F500A can be fl ash fi red with the sync-cord or photocell. If you use more than one fl ash light unit, the synchronized fl ash fi ring
can be done in two ways:
a) one fl ash light unit will be connected to the camera by a sync-cord, which has to be plugged into the socket SYNC. When shooting the
photograph, the camera triggers the sync-cord connected fl ash light unit and every other fl ash light unit with Photocell switched on will be
released synchronized;
b) connect an IR trigger to your camera and switch on the photocell at every fl ash light unit that must/should be released synchronized; when
shooting the photograph, the IR trigger will be released by the camera, and every fl ash light unit (that receives a strong enough IR light impulse)
will be released synchronized. For technical and practical reasons, we recommend this fl ash release version.
To assess lighting and shadow ratio/impact the F500A is equipped with a 300 W pilot or modeling light. With switch PILOT SET set to position
I, the pilot light output power will change proportionally and continuously when fl ash light output power is changed. Set to position II the pilot
light output power will also change proportionally when the fl ash light output power is changed, but in addition: the pilot light will automatically
turn-off during the re-/discharging time of the F500A. After re-/discharging, the pilot light will automatically turned on again to indicate
readiness for fl ash fi ring (useable as an opitical fl ash fi ring control).
In certain circumstances, such as when the material has shiny surfaces or is deep/dark black, focusing the lens can be a problem. In such a
situation, the PILOT RANGE switch can reduce the output power from 100% (position I) or 50% (position II); this is only effective if the
PILOT SET switch is set either to position I or II). Using the PILOT RANGE switch does not change the fl ash light output power setting!
The ACOUSTIC CONTROL switch, in position I or II, allows the successful control of different acoustic tone fl ash fi ring ready/fl ash fi ring.
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