this one is for minolta md mount. a very solid lens in near mint condition that i bought from kerrisdale camera a couple of yrs ago, but literally only used it for a roll of film as shortly after I moved to nikon. $80 OBO.
further details here:
http://camera-wiki.org/wiki/Vivitar_Series_1_70-210mm_f/3.5_VMC_Macro_Focusing_Zoom