More cowbell: 36-inch, f/4 lens 9 July, 20079 July, 2007 Nicolai Grossman Random Check out this 200 pound, 12 inch across, 35 inch long Perkin Elmer 36 inch f/4 aerial lens at the camera hacker’s delight cheap optics shop, Surplus Shed. Yours for a mere US $3,750. Thanks to Seth for the heads up on this piece of insanity!