Technical data

When the light setup is created, the power ratio can
be individually controlled for each lamp head by using
any of the four separate power controls.
For adjusting the total exposure after the correct
ratio is set, all channels (power settings) on the
generator can be changed simultaneously by holding
down the master button and turning any one of the
lamp head controls in use.
Making Overall Output Changes
Fast and Easy
The individual LED displays for each channel can be set by
the user to display the flash power in Ws or in relative
f-stops and always show the real output. In the Ws mode,
the display indicates the actual watt second output for each
individual head. If you prefer, output can be expressed in
f-stops, with 100% power being equal to 10 on the scale.
With the reduction of one f-stop in power, the display
reads 9. Likewise, a 1/10 f-stop increase would read 9.1
and so on. And thanks to the microprocessor-controlled
output, you can be sure that each head will produce exactly
the amount of light you want each and every time.
Perfect Performance
Short flash duration and fast recycling are inherent in the
design of a Profoto generator. The D4 1200 has a flash
duration from 1/7500 to 1/1000 sec. and recycling times
from 0.07 to 1.20 sec. The D4 2400 offers flash durations
from 1/4500 to 1/600 sec. and recycling times from 0.09
to 2.20 sec. The D4 4800 has a flash duration from 1/2700
to 1/350 sec and recycling time from 0.12 to 4.40 sec.
In addition, from flash to flash and over the entire power
range, no shifts of the colour temperature or f-stop will occur
– even if four heads are used. This guarantees accurate,
consistent results for all analogue and digital shots.
In the range of 90-240 V/50-60 Hz, the D4 generators will
automatically adjust themselves to the mains voltage;
only the modeling lamps need replacing.
Thanks to the 4 independent outputs, many jobs can be done
with just one generator – a comfortable solution for the
“pro-on-the-go”. No matter what and where you shoot,
with a Profoto D4 you’ll always have the ideal tool. And
because of their solid construction and the use of high quality
components, these packs are real workhorses, something
you can trust in. Profoto D4’s are true all-around generators.
D4 Profoto D4 – Generators
6
Profoto D4 Generators; 1200, 2400
and 4800 Ws
This new flash generator from Profoto is the perfect combination
of digital precision and versatility with analogue control and
reliability. This gives you the immense possibilities of computer
technology and the logical handling of a classic instrument.
D4 generators grow with your demands. They are suited to
all kinds of sophisticated photography such as still life, interior,
people and product shots.
Advanced Functions
In producing the next generation of flash, design goals were
set to give the pack a look and feel of the sophisticated,
precise working tool it was conceived to be. From its sleek
and ergonomic shape to its responsive controls, the Profoto
D4 offers microprocessor regulation for consistent output,
whether you work from the pack or control it from your computer.
Even though D4 generators offer the most advanced functions,
they are easy to use and almost self explanatory.
Full Direct Control
Designed from the ground up with the commercial photographer
in mind, the all-new, digital Profoto D4 flash generators set
the standard for consistency and control. The four channel
asymmetric system allows direct control of each lamp
head. Each head is controlled by a separate knob with a
corresponding high contrast LED panel. Simply working
with one D4 generator is effectively the same as using four
independent flash units.
By rotating the knob, 1/10 f-stop adjustments are made.
If the knob is pressed down while rotating, full f-stop
adjustments give the photographer unsurpassed control
over an eight f-stop range. In addition, the energy can be
asymmetrically distributed over a broad range.