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This is the Profoto Pro 8a Air 2400 Watt/Second Power Pack. It was designed and built incorporating some of the suggestions of thousands of professional photographers and rental-house technicians. As with the Pro 7 Series (which will still be around), the Pro 8a is rugged, reliable and easy to use.
Main power controls for each head are top and center. Levels can be set in 0.1 stop increments with a flick of each knob, or in full stop increments by pushing down and turning each knob. Default readout is in stops, with "10" being full power. Readouts may be seen temporarily in Watt/Seconds with a push of a button. Secondary controls for the modeling light, radio slave, recycle speed and audible recycle tone are visible from the top, but controlled from the sides.
The truly impressive features of this 2400 watt/second power pack are found in its performance. The 8a Air has extremely short recycle times which allow it to fire up to 20 times a second (stroboscopic). Power and color fluctuations are not visible in the image to the human eye (±1/50 f/stop and ±40°K flash-to-flash, respectively). The power levels may be controlled from the optional Profoto Air transceiver and/or the optional USB transceiver, from your Mac or PC.
Fires With or Without Wires
Built-in proprietary Profoto Air radio slave system has a range of up to 1000' (300 m)
Works with optional Profoto Air Remote camera-mounted transceiver (available soon)
Optical slave "sees" the light from other flashes, fires instantaneously
Two sync sockets enable "hard-wire" daisy-chaining of several power packs
USB port accepts the optional Profoto Air USB transceiver and software which enables full control of the system from your Mac or PC
Two independently controlled head channels -- no power ratio switches or dials to slow you down
Each channel may be dialed down to as little as 5 Ws per channel
Ten f/stop power range
Short and Fast
Blink-of-an-eye 1/1600 second flash duration at full power
All-action-freezing 1/12,000 second flash duration at minimum power
0.9 Second recycle time at full power
0.05 Second recycling at minimum power
Up to 20 flashes per second possible
Rugged and Safe
Dual rubber-coated handles
Rubber-coated top and bottom edges
Control knobs have no stopping point
Long-time proven arc-proof head sockets allow hot-swapping of cables
In the Box
Profoto Pro-8a Air Power Pack - 2400 Watt/Seconds (100-240VAC)