Model Name: Nikon SB-900 Speedlight Flash Unit Flashgun | |
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Image: | ![]() |
Fivercam Price (used) UK | |
eBay Price (used) UK | |
Release Date | 30 June 2008 |
Strenght / Power | |
Guide Number (ISO100, meters) ![]() | 111.5' / 33.99 m ISO 100 at 35 mm Position |
Power Level Switching (Vari-power Range) | 1/1 to 1/128 |
Head & Coverage | |
Bounce (Up-Down) Head Movement | Yes |
Swivel (Rotation) Head movement | Yes |
Focal Length Coverage ![]() | 104° - 12° Wide-Angle Adapter: 122° - 104° |
Auto Zoom Head ![]() | Full Frame: 17 - 200 mm |
Flash Related Functions | |
Flash Durations ![]() | |
Flash Modes(TTL) ![]() | Yes (only supports i-TTL) |
Flash Exposure Compensation / Correction ![]() | |
Secondary Illumination ![]() | |
Wireles Flash | |
Wireless Operation ![]() | |
Wireless Groups ![]() | |
Wireless Channels | |
Remote Timing Modes | |
Other Features | |
Mount | Hot-shoe mount flash |
Off Camera Terminal / External Connectors | Proprietary |
Included Accessories | |
Other Functions | |
Power Source & Recycle Time | |
Power Source - Batterry | 4 x AA Alkaline, Lithium, NiCad, Rechargeable NiMH Batteries |
External Power | |
Minimum Recycle Time (Charging time between shooting) ![]() | Approximately 2.3 to 4.5 Seconds |
Battery Life ![]() | Number of flashes at full power: 110 per set of alkalines, 190 per charge of 2,600 mAh NiMH |
Dimensions & Weight | |
Dimensions | 3.0 x 5.7 x 4.7" / 7.6 x 14.5 x 11.9 cm |
Weight | 14.6 oz / 413.9 g |
More Details or Support Website: | Link |
Item 1 |
There are three ways to trigger off-camera flash units wirelessly: via infrared, radio signals or a hybrid method that involves both infrared and radio. The infrared system works like the TV remote; there need to be a direct line of sight for the signal to reach the destination. The radio signal has no line-of-sight limitations, but comes at a rather high cost. The hybrid system simply takes the infrared signal from the commander, converts it over to radio and then converts it back to infrared on slave units.
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