COMPUTER INTERFACE
Today, with many photographers shooting digitally, camera controls are often just a mouse click away, working from the keyboard rather than the tripod. The Profoto D4 offers the same convenience, taking control to a new level. From your computer, all of the Profoto D4 controls are accessible exactly the same as if you had your hand on the control panel. Raise and lower power, turn on individual heads, change modeling light settings and set auxiliary functions. Precise control has never been simpler.

FLASH POWER/AUXILIARY DISPLAY
The green LED displays for each channel can be selected by the user to show the output in W/S or in a relative f-stop. 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 percent power equal to 10 on the scale. As power is reduced in tenths, the readouts read 9.9, 9.8 etc. Full f-stop changes are indicated 10, 9, 8 etc. Each channel can be named individualy. A click on the “Auxiliary” tab gives access to all special functions.

PACK INDENTIFICATION TAB
Each pack connected ot the computer can be selected by clicking on the corresponding tab. Up to 127 packs can be controlled separately, simultaneously or in different groups by a computer.

ON/OFF FOR THE BUILT-IN PHOTOCELL
Allows the photographer to utilize or de-activate the built in infrared/white light slave.

SLAVE/RADIO
Allows the photographer to select between built-in photo slave or 32 channel/4 quad digital radio slave.

READY INDICATION
Allows the photographer to select the type of optical and/or acoustical indication desired when the pack is fully charged.

TEST BUTTON
Fires the flash manually. The button also serves as the ready light indicator, visually showing when the flash is 100% recycled.

MODELING LIGHT CONTROLS
Designed from the ground up with the commercial photographer in mind, the Profoto D4 offers automatic modeling light proportionality at the touch of a button. Each of the four lamp head connections has independent modeling light control. But the ability to turn each individual modeling light off from the pack is only the start. There are four different unique settings for the modeling light:
1. Max – modeling light is on full power regardless of the flash output settings.
2. Proportional – as the power is raised or lowered the modeling light dims or brightens proportionally to show a true lighting ratio between the lamp heads.
3. 1/2 proportional – same as proportional, but modeling light begins at 1/2 power. This is especially useful when mixing 1200 and 2400 flash generators on the set.
4. Max Proportional – regardless of where the power is set for each individual lamp head on a single pack, the lamp head receiving the most power will automatically have a full power modeling light, and subsequent heads will show the output ratio proportional to it.

FAST/SLOW RECYCLE
Switching to slow recycle draws less current and extends the recycling time. This is ideal when shooting at locations that have low amp fuses.

POWER INDICATOR DISPLAY
Controls the ON/OFF function of the packs from the computer.

MASTER POWER CONTROLS
Often the fine-tuning of lights requires an overall power adjustment. With conventional flash generators, raising the power of all individual channels would require the photographer to manually adjust each channel individually by the same amount. With the new Profoto D4, the Master Power control button makes overall power adjustments quick and easy. Using the sohisticated software, it’s also possible to adjust the power of all or different groups of D4’s connected to a computer at the same time.

MEMORY RECALL
Three internal memory presets allow you to record commonly used setups for easy duplication in the future. By locking-in all of the pack settings, the Profoto D4 remembers individual head power controls, modeling light settings, as well as auxiliary features, like sequence and delay. Storing them safely until you recall them for use or erase them. If the generator(s) are controlled via a computer, just the computer memory limits the possible number of recorded setups.

Technical data and product descriptions are subject to change. October. 2002