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Advanced features include a booster circuit that enables high-speed recycling using four AA-type batteries and a built-in thermal protection system to warn of excessive heat build up. The SB-900 can automatically detect the presence of a fluorescent or incandescent color filter and transmit this information to the attached camera's white balance setting, and its firmware can be upgraded via the camera body. More Nikon flashlights
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Technical Details for Nikon SB 900 Speedlight
PDF - Print the technical details
| General | |
| Width | 7.8 cm |
| Depth | 11.2 cm |
| Height | 14.6 cm |
| Weight | 415 g |
| Camera Flash | |
| Type | Hot-shoe clip-on flash |
| Hot Shoe Type | Nikon |
| Guide Number (m / ISO 100) | 34 |
| Lens Coverage | 17mm - 200mm |
| Supported Exposure Control | I-TTL, TTL |
| Min Flash Duration | 0.026 ms |
| Max Flash Duration | 1.1 ms |
| Vertical Rotation Angle | +90 / -7 |
| Horizontal Rotation Angle | +180 / -180 |
| Zoom | Automatic |
| Manual Power Control Levels | 1/1, 1/64, 1/128, 1/2, 1/4, 1/8, 1/16, 1/32 |
| Features | AF illuminator, wireless off-camera control |
| Miscellaneous | |
| Carrying Case | Soft case |
| Included Accessories | Flash diffuser, flash stand |
| Power | |
| Power Consumption | Recycling time - 2.3 sec / 190 flash(es) - with 4 x AA type - Nickel Metal Hydride Recycling time - 4 sec / 110 flash(es) - with 4 x AA type - Alkaline Recycling time - 4.5 sec / 230 flash(es) - with 4 x AA type - lithium Recycling time - 3 sec AA type - oxy alkaline |
| Required Battery | 4 x battery - AA type |


