The HV is a very important part of the name. The original Vivitar 285 is not safe for your digital camera, the newer 285HV is. The most important difference is the now lower than 6-volt synch voltage in the new version. The 285HV ($90, street) offers a normal, wide or zoom setting (slide the front of the flash out). Yes it looks like your father’s flash, but its simplicity is also its beauty.