The SF4000 Bounce Zoom Slave Flash from Vivitar can be used as both a normal bounce zoom flash or as a slave. This flash features 4 slave modes that allow it to work with cameras that fire their built-in flash immediately or cameras that have a single or multiple flash red eye reduction system. Please check your cameras instruction manual to determine which flash system your camera has.
The SF400 has a multi-angle 3-position zoom head that covers wide angle, normal, and telephoto distances. It is compatible with Canon, Nikon, Panasonic, Sony, Olympus, and Minolta digital SLR Cameras.
| Mount | Shoe |
| Guide No. | Not Specified By Manufacturer |
| Angle of Coverage | Not Specified By Manufacturer |
| Vari-Power | Not Specified By Manufacturer |
| TTL Dedication | No |
| Bounce Head | Yes, +0° to +90° |
| Recycle Time | Not Specified By Manufacturer |
| Power Source | 4x AA Alkaline, Lithium Batteries |
| Weight | 14.7 oz / 417 g |