D2 500 AirTTL Unit

Recommended for: Studio and high volume photography
Popular applications: Portrait, Sports and action, Still life

Flash
Max energy: 500 Ws
Energy range: 10 f-stops (1 - 500 Ws)
Energy control increments: 1/10 or full f-stops

Flash mode settings: Freeze (shortest flash duration) or Normal (color balanced) mode

Flash duration t0.5
Normal mode: 1/2,600 s (500 Ws) - 1/17,000 s (1 Ws)
Freeze mode: 1/2,600 s (500 Ws) - 1/63,000 s (1 Ws)

Flash duration t0.1
Normal mode: 1/1,000 s (500 Ws) - 1/7,700 s (1 Ws)
Freeze mode: 1/1,000 s (500 Ws) - 1/13,500 s (1 Ws)

Energy stability: ± 1/20 f-stop

Color temp stability: ±150 K over range. ±20 K flash to flash
F-stop @ 2m / 100 ISO: 45 8/10 with Magnum Reflector

TTL: Yes
HSS: Yes

Wireless connectivity
Operating range: Normal sync and remote control up to 300 m (1000 ft). TTL and HSS up to 100 m (330 ft).

Measurements
Width: 13 cm / 5.5 in
Length: 31 cm / 12.2 in
Height: 18 cm / 7.1 in
Weight: 3.0 kg / 6.6 lbs