Profoto technology, battery power, TTL, stop-action flash durations and 20 fps capability.
The most remarkable feature in the B1 Off-Camera Flash is that it is cordless. With a battery pack equipped within the unit itself allowing up to 220 full power flashes (with removable battery), the B1 looks to appeal to the highly mobile photographer. It also includes some incredible features like TTL built into the unit itself, allowing you to use your camera’s settings to decide on the power of the unit (with the use of their Air Remote TTL). The unit also packs 500w/s, which is more than enough power to meet your needs.
They also boast the speed of the unit. With up to 20 flashes per second (at low power) and a recycle rate under 2 seconds for full power, the B1 will be able to offer a great alternative to those using speedlights as off camera flash units. You can of course also expect to see all the great features contained in a standard Profoto light, with their zooming head, and mounting system that works for all current ProfotoUSA lights.
MAXIMUM OUTPUT 500Ws
OUTPUT RANGE Nine f-stops (2Ws–500Ws) in 1/10-stop or full-stop increments
RECYCLE TIME 0.1–1.9 sec (Quick burst up to 20 flashes per sec)
FLASH DURATION Normal mode, 1/11,000 sec (2Ws)–1/1000 sec (500Ws); Freeze mode, 1/19,000 sec (2Ws)–1/1000 sec (500Ws)
POWER SUPPLY Exchangeable lithium-ion battery
BATTERY CAPACITY Up to 220 full-power flashes
TTL COMPATIBILITY Canon EOS DSLRs with ETTL-II metering
DIMENSIONS 12.2 x 8.3 x 5.5 in. (31 x 21 x 14 cm)
WEIGHT 6.6 lb (3 kg) with battery