Amazing Tomioka lens for the Yashica Pentamatic series of SLR cameras. Yashica’s lenses were always (as best as I can tell) made for them by world-famous Tomioka Optical in their Tokyo factory. Sometimes you’ll find a lens that carries both a “Yashica” name and a “Tomioka” name on the lens ring. This rather rare lens sports only the Tomioka names… Tominon and Tomioka! This lens of course has the unique Pentamatic bayonet mount and would not fit any other cameras without an adapter. What I like most is the extremely low serial number… #614 in the production run. The entire serial number dates this lens as made in 1960 and the sequence production number of 00614.
Super rare very early production Pentamatic-S. NO. 120011 would have been made in the Suwa factory of Yashica in February 1961 and it was the 11th one off the production line! Amazing. These two items were recently available from a collector in Japan which helps me believe that the Pentamatic series was in fact released for the Japanese domestic market.