A rare Leica / Hughes Leitz 17mm f/2 fisheye lens prototype sold for $20,001 at Goodwill (the starting price was just $35):
The rare Leica/Hughes Leitz 17mm f/2 is a massive prototype fisheye lens made in Canada by Hughes Leitz Optical Technologies (the name used after Hughes Aircraft acquired Ernst Leitz Canada/ELCAN in late 1990 and before the sale to Raytheon in late 1997) specifically for Electrosonic. Weighing nearly 12 kg (about 26 lbs), it delivers a 163° field of view, features fixed focus with no aperture diaphragm, and was built for specialized industrial or projection use.
Additional information on the Leica / Hughes Leitz 17mm f/2 fisheye lens can be found here:
Check out this rare Leitz 17mm f/2 fisheye lens listed on eBay for $24k
Check out this rare Leica / Hughes Leitz 17mm 2.0 fisheye lens
