When I got my first DSLR my uncle gave me an old lens. I can't find much information on it on the internet and was wondering if anyone knows anything about. I'm probably going to sell it, if its worth selling....unless its worth keeping?? Anyway, anything anyone could tell me would be great. All I know is that it was made for analog cameras so my first question would be, could I even use it on a DSLR? The box says Vivitar. 80-200mm. f4.5. Also handwritten on the box is this: Zoom lens for Nikon EM Camera. I haven't touched it since I got it more than two years ago. Any info would be awesome! Thanks!