The Vivitar 385HV Flash is a powerful non-dedicated shoe-mount unit with a guide number of 138' at ISO 100 and 85mm and has an auto exposure range up to 70' (21.3 m). This flash unit has 5 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°, 75° and 90°. The unit has an easy-to-read lighted calculator dial so you can work under most lighting conditions. It operates on 4 AA batteries, and it also accepts any 6v-3a external power pack for faster recycle times and more flashes.
Guide number 138' at ISO 100 and 85mm
Accepts any 6v-3a external power pack for faster recycle time and more flashes
Five auto f/stop settings for controlling depth-of-field and maximum auto flash range
Zoom flash head has seven positions for covering 24 mm, 28 mm, 35 mm, 50 mm, 70 mm, 85 mm and 105 mm camera lenses
Bounce flash capability for softer lighting
Built-in vari-power for convenient fill-flash and rapid sequence photography
Auto Thyristor circuitry for faster recycle time and greater number of flashes