goamules
Well-known
Thanks! I always love the obscure equipment.
This is my copy. Anyone have knowledge of the Nikkor serial numbers? This one is rather interesting
A rare collapsible 50/2 lens! That's a very early lens from the fourth serial number batch. The first batch have serial numbers starting with 609 (means September 1946) and the second batch have serial numbers starting with 708 (means August 1947) for a total in both these batches of around 780 lenses. Then came a small third batch with serial numbers starting with 806 (means June 1948), then came the fourth batch with serial numbers starting with 811 (means November 1948). There were about 2,000 lenses made in the third and fourth batches. Later lenses in the fourth batch left the factory as a "hybrid" rigid, using an insert to stop the lens from collapsing. The collapsible format was then dropped and lenses in subsequent batches were all non-collapsing rigid lenses. Data sourced from the Complete Nikon Rangefinder System by Bob Rotoloni (a book worth owning if you're interested in the history of this gear).
Thank you for all this information. My lens is 8112702. So it was made between 1948 and when? What number did they change to rigid, non collapsible mounts?
I have a Nikkor 5cm/f2 early collapsible Tokyo (Leica screw thread) lens from the second batch (August 1947) serial no. 708599 which is in quite good condition considering it's age. I think that the Nikon rangefinder version was fitted to some late Nikon 1's and early Nikon M's.
Beautiful example you've got there. A little over a year older than my copy. 🙂
Many thanks splitimageview. All these collapsible Nikkors are excellent early post-war lenses and it is a marvel
that they could be in production in Occupied Japan, and of such fine quality, so soon after the end of World War II.
_________Nov 1948____ 81116 - 8111700