Jena T

[truls]

Today I got a Jena T lens, it is a new friend for my Exa-1. It looks in really good shape and all functions are smooth. The lens is clean and in general good working order. Is this a real Tessar lens or has the label Jena T some other meaning? Here are some pictures of the lens:

[hansz]

O yes, it is certainly a Tessar.
Due to the litigations DDR Carl Zeiss lost their right onn the Tessar name in the West (en mostly in the East). So, T for Tessar (like S for Sonnar, Bm for Biometar, Novonar for Novar).
Next to the T is the Quality Mark 1Q for the 1st class product of the DDR.

This T is not to be confused with the red-T mark (or red-delta, red-V and the likes) of early post-war cameras, meaning it was coated - quite a different story, and books have published about it...

Hans