GOI f. FED / VOOMP Jupiter-2 (!) 1.5/5cm prototype

Officially, the Soviet high-speed 5cm f/1.5 lens for FED/VOOMP mount was introduced and finalised as the Jupiter-3. However, the very first prototype of this design was designated as Jupiter-2 – or simply 'Jupiter' – as documented in the GOI 'Blue Book,' diagram no. 47.07b.

The lens offered here is an exceptionally rare and previously undocumented Jupiter-2 5cm f/1.5 in M39 screw mount, marked with an “F” for Foto (photographic use). It is beautiful, near-mint condition, with very good, coated optics and comes with a plain aluminium Tropen box.