A mint condition classic lens! No scatches or signs of wear, this piece is like new condition. Kitstar was the in house brand of Kits Camera stores. This lens is most likely a Vivitar make. 75-150mm makes this a great zoom lens. The mount is a Pentax K mount. Give me a text or call to come check out this vintage glass! Located in Sidney and can deliver for the price of fuel. Can be adapted on Nikon, Canon, Fujifilm, ect with great results