Batteries are required but not included with this item. Please be sure to purchase batteries for this item.
The Vivitar 285HV Flash is a powerful non-dedicated shoe-mount unit with a Guide Number of 120' (37 m) ISO 100 @ 50mm and has an auto exposure range up to 70' (21.3 m). This flash unit has 4 auto f/stop settings and built-in variable power to deliver accurate exposures and convenient fill-flash. The zoom head adjusts to 35mm, 50mm, and 105mm and can be set to bounce at 0°, 45°, 60°, and 90°. The unit has an easy-to-read lighted calculator dial so you can work under most lighting conditions, and it accepts optional high-voltage power sources for faster recycle time and more flashes.
| Mount | Shoe |
| Guide No. | 120' (36.58 m) ISO100 at 50 mm position |
| Angle of Coverage | 70° - 27° |
| Vari-Power | 1/1 - 1/16 |
| TTL Dedication | No |
| Bounce Head | Yes |
| Swivel Head | None |
| Coverage | 28 mm - 105 mm (Full frame) |
| Zoom Head | Full frame: 28 mm - 105 mm |
| Off Camera Terminal | PC |
| Recycle Time | Approximately 4.8 - 10.4 seconds |
| Power Source | 4x AA Alkaline Batteries |
| Dimensions (WxHxD) | 4.0 x 5.2 x 4.2" / 10.16 x 13.21 x 10.67 cm |
| Weight | 14.9 oz / 422 g |