I have a Canon 5cm 3.5 Serenar serial number 9870 and I was wondering if anyone possessed the wisdom to know when it was made and what a verison 1 (it is my understanding that two versions of the Canon labeled 5cm 3.5 serenar were made) with mint/good optics is very roughly worth? I can't locate any Ebay prices for a lens like this just yet.
This lens is a Tessar formula 50/3.5 in a brass mount with "very shiny Chrome". Performance compares well with the post-war 50/3.5 coated Elmar and coated Zeiss Tessar 5cm F3.5. The I-50 is the third formulation of the 50/3.5 Tessar in the Industar series, it improves on the optics of the...
cameraderie.org
Very similar to the Industar 50 EXCEPT no spanner slots. I use "Hollow Rubber Corks" that are used to pass wiring harnesses out of project boxes.
I bought the collection of my Friend's late Father-in-Law. The equipment was stored in a safe, that apparently had a high degree of moisture. Included in the collection is a Nikon S4 and Contax IIIa. As received- fungus had started between the cover glass and prisms. The S4 was a 20 minute job...
www.rangefinderforum.com
You can see my typical selection on the above repair thread. The little green rubber cork is what I used for the Canon.