THIS VIVITAR ZOOM LENSE HAS A SLIDER ZOOM ON IT....JUST SLIDE BACK AND FORTH......TO FOCUS JUST TWIST THE END OF THE LENSE..........CAME OFF OF A MINOLTA MAXXUM 300SI 35MM FILM CAMERA.......DON'T KNOW IF WILL FIT OTHER BRANDS OF CAMERAS OR NOT...............IT IS A VIVITAR 28-210 MM 1:3.5\5.6 MC AUTO FOCUS ZOOM 72MM MADE IN JAPAN IT HAS A HOYA 72M UV [0] ON IT.....MADE IN JAPAN