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