This is a Formula 5 telephoto lens number 397343 that I had along camera and 2x teleconverter that I have/had listed. I used this lens with a Pentax Spotmatic. It's range is 85-210mm. It is used, but in great condition. I do not have a case or cover for the lens. The lens is 7 3/4 inches in length fully extended. 2 3/4 inches in diameter. Weighs about 2.25 lbs. Shipping weight is 2.5 lbs.