The Profoto B1 500 AirTTL is a battery powered monolight strobe that’s designed for on-location shoots. Key features include:
- Removable Battery. The included lithium-ion battery provides about 220 full-power flashes per charge, or up to thousands when power output is lowered. The battery attaches to the side strobe housing itself, making it easy to move around with. The strobe cannot be AC powered, so once the battery is depleted you’ll need to recharge or swap batteries before you can continue shooting.
- Flash Output. The B1 500 AirTTL offers a maximum output of 500W/s, with 9-stops of adjustment in 1/10 or 1-Stop increments. Maximum recycle time at full power is 1.9 seconds, and a Quick Burst Mode enables 20 frames per sec at a reduced power level. Two additional modes (Normal and Freeze) allow you to choose priority of faster flash duration or minimal color shift depending on what your needs are.
- LED Modeling Light. The 20W LED provides the equivalent of 70W tungsten light.
- Full E-TTL II / i-TTL with Canon / Nikon Cameras. The B1 500 AirTTL is the first monolight strobe to offer E-TTL / i-TTL capabilities, allowing it to function similarly to a Canon / Nikon speedlite. This feature is only compatible with Canon / Nikon cameras that support E-TTL II / i-TTL and requires the system’s dedicated version of the Profoto Air Remote TTL. For Canon users, you must also rent the Profoto Air Remote TTL-C Transmitter. For Nikon users, you’ll want the Profoto Air Remote TTL-N Transmitter.
- Triggering Options. The strobe has a built-in Profoto Air radio receiver, allowing it to be triggered by either of the TTL remotes above. Alternately, you can also use the Profoto Air Remote Transceiver if you’re comfortable with manual power adjustment. You’ll get 300’ of range when triggering in TTL mode, and 1,000’ with normal radio triggering. Additionally, there’s a 1/8" mini sync input if you prefer using a sync cord, as well as built-in optical slave.
- Profoto Build. The B1 500 AirTTL borrows much of it’s design for the companies D1 monolights. It uses the same durable polymer housing, features a built-in fan and has an integrated 77-degree reflector. The controls and display on the rear panel are intuitive and user-friendly, and a mini-USB port behind the battery enable the firmware to be updated when new features are added. The B1 strobe offers compatibility with the same modifiers as the D1 monolights, allowing simple integration for existing Profoto users.
Light stand and umbrella not included!