Profoto D4 User Manual download pdf (Page 15)

Profoto D4 – Generators

D4D4

Profoto D4 – Generators

Profoto 24 The Light Shaping Company The Light Shaping Company

25 Profoto

Tu rn off individual heads by holding down the Flash and Modelling Light Button [12] at the

regarding outlet until the

Power Display [10] goes off.

PLEASE NOTE! Of course it is NOT possible, to get more than 100% power from

one generator, i.e. 1600Ws at socket A and 900Ws on socket B or 700Ws at all

sockets with a 2400Ws pack. If a chosen energy distribution is technically

impossible, one or more

Power Display(s) [10] will alternate between the chosen

and the possible power level for two seconds to inform the user. It is necessary

to decrease the energy of these socket(s) by using the corresponding

Power

Dial

(s) [13] before you can increase the energy at another socket. If you don’t

reduce the energy of the socket(s) with the alternating display, the generator

automatically returns to the former setting.

IMPORTANT! Because of the fact that the D4 works with separate capacitor

banks for best colour and f-stop stability, at some settings about 1/10 f-stop of

the total flash energy may not be available when using two or more heads.

Modelling Light

With four different modelling light modes it is possible to adjust a D4 generator to a users

preferences and get maximum control of the light setting. The maximum proportional

function is ideal to check delicate set-ups even at lowest flash power.

It is possible to activate the modelling light of each lamp head connected separately at the

generator by a short push on the

Flash and Modelling Light Button(s) [12] until it lights up.

CAUTION! Don’t hold down this button accidentally: In this case the Power Display [10]

goes off and the whole socket is completely deactivated. Check if the modelling

light switch at the back of the head is at the “On” position if a head doesn’t react.

The D4 has a soft start function of the modelling light that extends the lifetime of the

halogen lamps. This is why the modelling light starts with a slight delay. To turn off the

modelling light of a single head, push again the

Flash and Modelling Light Button [12] of

the corresponding socket. To turn off the modelling light of all heads used, it is also possible

to push the

Modelling Light Button [19] – the modelling light goes off and the Modelling

Light Indicators

[20] and the Flash and Modelling Light Button(s) [12] are dark.

To change the modelling light mode, hold down the

Modelling Light Button [19] until the

desired function is indicated:

1. MAX – Maximum modelling light

The modelling light is at full power regardless of the flash output settings.

2. PROP – Proportional modelling light

The modelling light dims or brightens proportionally to the flash output settings.

3. MAX & PROP – Maximum proportional modelling light

The head receiving the most flash power will automatically work at max. modelling

light, subsequent heads will show the output ratio proportional to it.

4. 1/2 PROP – Half power proportional

The modelling light works at half max. power and dims or brightens proportional to

the flash output settings. (This is useful when mixing 1200Ws and 2400Ws generators

on a set; in this case the 1200Ws pack(s) should be used at 1/2 PROP. Or if a D4 with

4x 500W modelling light is used at a weak fuse/petrol- electric generator.)

After 4. the functions return to 1.

Connecting Camera and Flash Meter

The two Sync Sockets [4] allow the camera and flash meter to be connected simultaneously.

The 5 meter sync cord can, without restrictions be lengthened with a sync extension cable.

Generators can be connected by means of the Profoto sync interconnection cord, so called

“hard wiring”.

Recharging

The recharging starts after the On/Standby Button [3] is pushed and the connected heads

are activated with the

Flash and Modelling Light On/Off Button(s) [12]. Normal or

fast recharge can be chosen by pushing the

Normal/Fast Recycle Switch [21]. If the

Normal/Fast Recycle Switch [21] isn’t lit, the generator will recharge at the slower,

“normal” rate. Choose this alternative (and in total max. 1000W modelling light), when

the generator is connected to a mains supply with weak fuses, or if you are uncertain as to

how well the mains supply is fused. If the

Normal/Fast Recycle Switch [21] is illuminated,

fast recharging is obtained. This is sufficient for dynamic photography like people and

sports. See “Technical Data” (page 33) for details about the power consumption.

Ready/Charging Signals

Five individual modes offer full information about the actual status of a D4 generator.

This gives the photographer immediate feedback at all shooting situations.

To turn off all ready and charging signals, push once the

Ready Mode Button [17] – the

Ready Signal Indicators [20] are off and just the Ready Lamp [18] is lit when the generator

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Profoto D4 User Manual Page 15

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