Profoto's Air Remote E-TTL transmitter for Canon is the key to wireless triggering and TTL remote control of its B1 and B2 AirTTL Off Camera Flash heads. Operating on the 2.4 GHz bandwidth, the transmitter, really a controller, has 8 frequency channels and with 3 groups per channel and a range of up to 330' for TTL triggering and 1,000' for normal triggering.
Each channel has power ratio capability of +/- 2 stops.
Whenever Profoto introduces a product, anyone in the photo world sits up and takes notice since at the very least, it’s going to be impressive. The introduction of the B1 500 AirTTL is truly ground-breaking or to be more accurate, game-changing.
Based on the popular D1 Air series of monolights, all of the familiar professional and convenience features we’ve come to expect from Profoto are onboard. The B1 has the same dense, durable polymer housing, integrated 77-degree reflector, built-in receiver compatible with Air transmitters and intuitive highly visible controls and display as the D1 but with two striking differences – battery power and TTL camera/flash integration.