The Cobra 700AF Flash for Nikon AF Flash is a powerful dedicated shoe-mount unit with a Guide Number of 147' at ISO 100 and 85mm and has an auto exposure range up to 40'. This flash unit has three auto f/stop settings to deliver accurate exposures and convenient fill-flash. The zoom head adjusts to 35mm, 50mm, and 855mm and can be set to bounce at 0°, 45°, 60°, and 90°.
Guide number:137 with ISO 100
Trigger voltage: 4.4 Volt
PC Sync:No Hot Shoe:Yes
Manual Power Setting:No
Swivel Head:Yes
Tilt Head:Yes
Zoom Head:Yes
Power Source: Requires 4 AA 1.5 Volt Alkaline Batteries