PROFOTO B2 TO-GO Kit 250 AirTTL
This B2 250 Air TTL To-Go Kit from Profoto is an ideal way to get into the game-changing battery-powered flash system that includes the B2 250 AirTTL Power Pack, Flash Head and tailor-made OCF (Off-Camera Flash) accessories. The kit includes the pack, a battery, charger, 1 B2 flash head, padded Location Bag and a Carrying Bag with shoulder strap. Complete the kit and get full wireless TTL operation with the purchase of a dedicated AirRemote TTL transceiver for your Canon or Nikon Camera.
Intended for the road, the B2 250 AirTTL Power Pack measures 6.3 x 3.1 x 6.7" and weighs in at just 2.2 lb with its Li-Ion battery. The B2's twin outlets each have a dedicated thumbwheel that allows the pack's 250Ws of power to be distributed asymmetrically over a 9-stop range in full or 1/10 steps.
The digital LED screen that displays the power settings is also the key to the pack's many capabilities. The B2 boasts recycling times from 0.03 - 1.35 sec., and an action-stopping flash duration of 1/1,000 sec. There is also a Freeze Mode that selects a flash duration of 1/15,000 sec. at lower power settings - fast enough to "freeze" water droplets, spray and splashes. Bursts of up to 20 frames per second are possible while High Speed Sync allows shutter sync speeds from 1/4,000 - 1/8,000 sec., giving you wide ambient light control options. The pack's Li-Ion battery can be charged in or out of the pack and will give you up to 215 full-power flashes on a 45-60 minute charge from a multi-voltage 2.8A battery charger or a trickle charge from an optional car charger.
At 1.5 lb, the sturdily built B2 Off-Camera Flash Head measures 4" long, has a 3.9" diameter and fits in the palm of your hand. A barely-visible umbrella channel runs through the top of the head, while its tethered 6.5' head cable can be lengthened with a 9.8' extension for large groups or for hanging in hard to reach places. An included stand or pole-mount with a ratcheting handle can be removed for mounting to a flash bracket. The B2's flash tube and 50W halogen-equivalent LED modeling lamp are protected by a frosted glass plate, while its 3.9" diameter housing accepts a line of optional accessories that includes OCF-tailored softboxes, barndoors, a snoot, and a grid set. They can also be used on the B1 battery-powered monolight.
Overview
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Product name
B1X 500 AirTTL -
Product number
330169 -
Recommended for
On-location photography -
Popular applications
Portrait, Wedding, Sports and Action
Flash
-
Max energy
500 Ws -
Energy range
9 f-stops (2-500 Ws) -
Energy control increments
1/10 or full f-stops -
Recycling time
0.1-1.9 (Quick burst up to 20 flashes/second) -
Flash mode settings
Freeze (shortest flash duration) or Normal (color balanced) mode -
Flash duration t0.5
Normal mode: 1/1,000 s (500 Ws) - 1/11,000 s (2 Ws)
Freeze mode: 1/1,000 s (500 Ws) - 1/19,000 s (2 Ws) -
Flash duration t0.1
Normal mode: 1/400 s (500 Ws) - 1/6,000 s (2 Ws)
Freeze mode: 1/400 s (500 Ws) - 1/8,000 s (2 Ws) -
Energy stability
±1/20 f-stop flash to flash -
Color temp stability
Normal mode: ±150K over range; ±20K flash to flash
Freeze mode: ±800K over range; ±50K flash to flash -
F-stop @ 2m / 100 ISO
45 2/10 -
TTL
Yes -
HSS
Yes
Modeling light
-
Selectable settings
Off, Proportional, Free (5-100%) -
Max power
24W LED (Output equivalent to 130W Halogen)
Wireless connectivity
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Operating range
Normal sync and remote control up to 300 m (1000 ft). TTL and HSS up to 100 m (330 ft).
Additional connections
-
USB
Yes, USB Mini port for FW upgrading -
Wire sync voltage
Compliant to ISO 10330 standard -
Sync socket(s)
1 -
Wire sync connector
3.5mm Mini-Phono
Powering
-
Input power supply
Exchangeable Lithium-Ion Battery 14.4V/3Ah -
Battery capacity
Up to 325 full power flashes
Miscellaneous
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Fan cooling
Yes -
Ready signals
Yes -
Auto dumping
Yes -
Photocell/IR-slave and switch
Yes -
Digital display
High-resolution display with a superior, intuitive interface
Measurements
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Width
14cm (5.5") -
Length
31cm (12.2") -
Height
21cm (8.3") -
Weight
3 kg / 6.6 lbs (including batteries)