It is called destroyed lens. ;-) Shalom, Jeff (Zeev).
Boris Liberman wrote:
Hi! I have a lens that was loaned to me by my friend who actually made it. He took old Helios 44K-4 lens (58mm f/2) and took out all but front element. How is it called in English: monocle? monocular? Please, this is just a simple question of language... Thanks in advance. Boris

