Depending on how much faith you place in the drivel on the internet, this lens is worth somewhere between a nickel and a crispy $100 bill. It is one of the early constant aperture Series 1 lenses and the condition is flawless. Glass has been protected by a filter since the day it was born. Mount is Nikon AI, which is always nice. Focus is buttery smooth, aperture is snappy and perfect. And at f/3.5 max aperture, it will give you some serious cred at your next group photo shoot. Includes original caps. Let's call it $50 for APUGers. Buyer pays only actual shipping. Enjoy!!