Rare to find one so beautiful (see photo). In perfect working order. This is an extra lens that's screwed on the lens filter holder ring (normally a 50 mm) that will turn into a Fish-Eye/fish eye. with gear from 52 to 49 mm thread.
Manual focus Jupiter-12 Russian f2.8 / 35mm lens. FOR PARTS ONLY, NO REAR OPTICAL BLOCK. Aperture range f2.8 - f22, minimum focus distance 0.9 metre. Comes with original front and rear lens caps. Coated front element group glass is clean and clear.