The Vivitar DF400MZ Digital TTL Shoe Mount Flash is fully compatible with the latest Canon digital SLR cameras. It fully supports E-TTL II flash operation, and offers professional features like: front and rear curtain synchronization, five levels of manual power adjustment, and a built-in slave function. The ideal all-around flash for any digital or 35mm autofocus SLR shooter.
| Type | Shoe Mount |
| Guide No. | 131' (40 m) at 85mm |
| Angle of Coverage | 84° to 28° (24-85mm lenses in 35mm format) |
| Variable Power | 5 Levels |
| TTL Dedication | Yes (E-TTL & E-TTL II) |
| Bounce Head | Yes |
| Swivel Head | Yes |
| Zoom Head | 24-85mm autozoom (flash senses focal length & adjusts) |
| Off Camera Terminal | No |
| Recycle Time | Not Specified by Manufacturer |
| Power Source | Four 1.5-Volt "AA" batteries |
| Dimensions | 2.3 x 2.9 x 6.9" (59 x 74 x 175mm) WxHxD |
| Weight | 9.5 oz (270g) |