Profoto D4 - Manual (Page 7)

Profoto D4 – Acute/D4 Heads D4 D4 Profoto D4 – Acute/D4 Heads
Profoto 8 The Light Shaping Company The Light Shaping Company 9 Profoto
Acute/D4 Head
All Profoto lamp heads are designed for maximum light shaping ability.The reflectors lock
easily into place and by sliding the reflector different types of light shapes are achieved.
All Profoto reflectors and accessories fit the Acute/D4 Heads. The flash head has a built in
holder for the umbrella. A UV-reduced quartz flash tube is included with all Acute/D4 Heads.
The flash tube has two metal pins. When removing a flash tube, pull it straight out of the
sockets. When inserting a new flash tube, check that the trigger wire clasps properly around
the flash tube (please see mounting instructions in package). Always use original Acute/D4
flash tubes, other flash tubes can create serious malfunctions. In case the head overheats
the modelling light automatically switches off. When the temperature has dropped suffi-
ciently the modelling light will switch on again.The Acute/D4 Head is fan cooled and it has
an automatic voltage selector for the fan.
WARNING! The proportional modelling light is powered directly from the mains
and it is therefore important to check that the rated voltage for the lamp
corresponds with the mains supply before connecting a head with the generator.
A switch at the back of the head allows turning off the modelling light.
PLEASE NOTE! Always unplug the lamp cable from the generator before changing
modelling lamp, glass cover or flash tube. A 250W E11 Mini-Can halogen lamp is
included, but the head is also available with a 500W lamp.
The Acute/D4 Head is supplied with a frosted UV-coated glass cover and a Standard Zoom
reflector. Combined with the UV-reducing quartz flash tube the frosted glass cover offers
the recommended colour temperature for daylight type film. Distinctive colour temperature
adjustments can be obtained by combining glass covers with different coatings.
The following glass covers are available:
For 250W modelling lamp
10 15 33 Glass Cover, frosted, UV-coated (standard)
10 15 34 Glass Cover, frosted, uncoated (+300°K)
10 15 35 Glass Cover, frosted, extra UV-coated (-300°K)
10 15 36 Glass Cover, clear, uncoated (-300°K)
10 15 37 Glass Cover, clear, UV-coated
10 20 02 250W, 120V Halogen, Mini-Can
10 20 13 250W, 240V Halogen, Mini-Can
For 500W modelling lamp (long version)
10 15 18 Glass Cover, frosted, UV-coated (standard)
10 15 19 Glass Cover, frosted, extra UV-coated (-300°K)
10 15 20 Glass Cover, frosted, uncoated (+300°K)
10 15 21 Glass Cover, clear, UV-coated
10 15 23 Glass Cover, clear, uncoated (+300°K)
10 20 07 500W, 120V Halogen, Mini-Can
10 20 15 500W, 240V Halogen, Min-Can
Acute/D4 Twin
The Acute/D4 Twin offers even shorter flash duration,very quick recycling or the ability
to obtain 4800 Ws out of one single head. An Acute/D4 Twin has two flash tubes. As the
flash duration is shorter at low power settings, and as only half of the desired power is
used in each tube, consequently shorter flash duration is obtained. If you require shorter
flash duration and for example need 1200 Ws, you connect the Acute/D4 Twin to the A and B
sockets on the D4 1200 generator and fire 600 Ws from each tube. The flash duration is
shorter than if a standard Acute/D4 Head is used.The flash duration at 1200 Ws with an
Acute/D4 Head is 1/1000 sec. while it is only 1/1600 sec. with an Acute/D4 Twin. If, on the
contrary, you require faster recycling, you power one Acute/D4 Twin with two D4 genera-
tors. The recycling is faster since each generator needs to recharge less of it’s energy.To get
4800 Ws from one head you connect the Acute/D4 Twin to two D4 2400 generators.
WARNING! The proportional modelling light is powered directly from the mains
and it is therefore important to check that the rated voltage for the lamp
corresponds with the mains supply before connecting a head with the generator.
A switch at the back of the head allows turning off the modelling light.
PLEASE NOTE! Always unplug the lamp cable from the generator before changing
modelling lamp, glass cover or flash tube.The modelling light is a 500W Halogen
with a Mini-Can socket (E11). The flash tube has two metal pins. When removing
a flash tube, pull it straight out of the sockets. When inserting a new flash tube,
check that the trigger wire clasps properly around the flash tube (please see
mounting instr uctions in package). Always use original Acute/D4 Twin flash
tubes, other flash tubes can create serious malfunctions.
The Acute/D4 Twin is supplied with a frosted UV-coated glass cover and a Magnum reflector.
Combined with the UV-reducing quartz flash tube the frosted glass cover offers the recom-
mended colour temperature for daylight type film. Distinctive colour temperature adjust-
ments can be obtained by combining glass covers with different coatings.
The following glass covers are available:
10 15 18 Glass Cover, frosted, UV-coated (standard)
10 15 19 Glass Cover, frosted, extra UV-coated (-300°K)
10 15 20 Glass Cover, frosted, uncoated (+300°K)
10 15 21 Glass Cover, clear, UV-coated
10 15 23 Glass Cover, clear, uncoated (+300°K)
10 20 07 500W, 120V Halogen, Mini-Can
10 20 15 500W, 240V Halogen, Min-Can