Voigtländer Ultron Vintage Line 28mm f2 Type II fish eye don't worry: you're about to

don't worry: you're about to lose your pants

a few marks on the focusing screen

Whether or not this is useful depends very much on whether you're feeling head-short

and there may be a few others out there

The Pentax SMC Pentax-F 28-80mm f3

Voigtländer Ultron Vintage Line 28mm f2 Type II fish eye don't worry: you're about toThe Voigtlnder Ultron Vintage Line 28mm f2 Type II is a fast wide angle lens for Leica M mount. This "Vintage" version has a classic look with a glossy black paint finish over a brass body, with modern aspherical lens performance. In excellent condition, with clean glass and only light cosmetic wear. With box.