Unlike the fully cordless B1, the new B2 are a traditional pack and head system, meaning the battery and capacitors are housed in the pack, leaving the flash head very compact and lightweight at just 700 grams.
The 1.6kg Lithium-ion powered B2 pack provides up to 220 full power pops, and batteries are interchangeable.
Recycle times (0.03 to 1.35 seconds) are practically instant even at full power, and quick burst of up to 20 frames per second are possible (at lower power levels).
The B2 pack provides ports for up to two B2 heads, with full asymmetrical power split between them (sharing the 250Ws total).
• TTL and HSS (High Speed Sync).
• 2 fully asymmetrical outlets.
• Lightweight and compact flash heads with powerful LED modeling light.
• Exchangeable high capacity Lithium-Ion battery.
• Power range over 9 f-stops (1-250Ws) adjustable in 1/10th f-stop increments.
• Fast recycling of 0.03-1.35 seconds.
• Built-in AirTTL fully supports wireless operation with all existing Profoto Air transceivers up to 300 m (1,000 ft) away.
• Battery capacity of up to 215 full power flashes or 90 minutes of full modeling light in one charge.
• Built-in reflector and detachable stand mount.
• Intuitive and easy-to-use user interface.
• Compatible with most light shaping tools from Profotos renowned light shaping system.
The B2 use the same Air TTL transmitter for Canon or Nikon DSLR systems, providing TTL, HSS and remote manual power setting for up to 3 groups.
The Air Remote TTL transmitter is designed to be very fast and simple, in TTL or remote manual.
Power or FEC adjustments are in precise 1/10th stops (full stop adjustments are possible as well). 9 full stops of power adjustment in manual from 1Ws to 250Ws. And + or – 2 stops of FEC adjustment in TTL.
As well as a unique TTL Lock function, which allows an initial exposure to be made quickly with TTL, and then stored and manual tweaked from there.
Although possibly in its early stages (of practicality), a unique feature of the B2 head is the ability to also provide a TTL and HSS enabled on-camera flash option when mounted on a flash bracket above the camera.
(And Air TTL transmitter mounted on the camera hotshoe – not shown).
The new B2 lights are aimed primarily at wedding, event, and location portrait photographers. And for many wedding photographers a flash on camera is almost a necessity.
Profoto do not have an on-camera radio master speedlite unit like the Canon 600EX-RT though, so mounting the B2 head on a camera bracket like this at least provides an on-camera flash option.
Also integrated with the Profoto’s off camera flashes if needed.
This configuration no doubt provides significant advantages in power an recycle times, though also requires shouldering the weight of a 1.6k battery pack (and there is no AF assist light on the Air transmitter unit as a speedlite provides).
The B2 pack does provide a carry case with wide shoulder strap and belt loops though.
The B2 also provides a Freeze Mode where flash durations are as short as 1/15 000 s at minimum power (1/1000 s at full power t0.5) for freezing action when needed.
A battery level indicator is also provided on the pack.
The B2 heads come with a removable swivels, and the modifier mount accepts all standard Profoto modfiers, as well as the new range of lightweight Profoto OCF modifiers.
A 9w LED (50W haologen equivalent) non dimmable modeling light is provided.
Profoto have also release a new range of lightweight modifiers specifically designed to complement the Off-Camera Flash range.
A new lightweight softbox speedring design allows the sofbox rods to be quickly snapped open –
And there are a range of corresponding OCF softboxes now available.
Other fitted OCF modifiers include barn doors, a snoot, and grid set.
Product number: 901107 B2 250 AirTTL (excl. battery), 901108 B2 Head
Max energy: 250Ws
Energy range: 9 f-stop (2.0-10.0 ; 1/256-1/1)
Recycling time: 0.03-1.35s (Quick burst up to 20 flashes/second)
Flash duration Normal mode (t0.5): 1/9300 s (1Ws) – 1/1,000 s (250Ws)
Flash duration Freeze mode (t0.5): 1/15,000 s (1Ws) – 1/1,000 s (250Ws)
Guide number @ 2m / 100 ISO with Magnum Reflector: 32 2/10
Battery capacity: Up to 215 full-power flashes
Max modeling light: LED 9W (Equivalent of 50W Halogen)
Radio sync & control: Yes, built in AirTTL supporting wireless sync, control
Size Generator (incl. battery): 16 x 8 x 17 cm / 6.3 x 3.1 x 6.7 in
Size Head (excl. stand adapter): 10 cm / 3.9 in Ø 10.3 cm / 4.0 in length
Weight Generator (incl. battery): 1.6 kg / 2.2 lbs
Weight Head (excl. stand adapter): 0.7 kg / 1.5 lbs
The B2 are available in single and dual head kits –
B2 TO-GO KIT
Includes one B2 Off-Camera Flash, one B2 Head, one battery and charger, and one B2 carrying bag, all packed in the custom B2 Location Bag
B2 LOCATION KIT
Includes one B2 Off-Camera Flash, two B2 Heads, 2 batteries and one charger, one B2 carrying bag, all packed in the custom B2 Location Bag.
Other individual options include –
|B2 250 AirTTL w/o battery||$1495|
|Li-lon Battery for B2||$229|
There is a nice video overview of the B2 system here from Resource Mag Online –
PRICE AND AVAILABILITY
The single head Profot B2 Go-Kit, and dual head B2 Location Kit are available now, for USD 2,195.00 and 2,995.00 respectively (as wells as accessories and OCF modifiers) –
Profoto – Website
Profoto B1 – Overview