Gear & Reviews Photography Equipment Reviews Lighting Reviews Vivitar 285HV Review Vivitar Updates a Classic for 2007. By Paul Lefevre | Published Dec 17, 2008 7:12 AM Gear & Reviews SHARE Vivitar-285HV-Vari-Power-module-set-at-1-2 Vari-Power module set at 1/2. Vivitar-285HV Vivitar 285HV Vivitar-285HV-Slide-the-flash-head-back-and-forth Slide the flash head back and forth to change the zoom settings. The flash head can also be tilted with click stops at 90, 75, 60 and 45 degrees. Lighting Reviews Photography Equipment Reviews