I have a very similar 1.5 Jena Sonnar with a earlier serial number 2188102. I came upon it a few years ago on Ebay. Mine is definitely not "T" coated but it renders very beautifully wide open(i.e. dreamy) but quickly becomes very sharp but with a character that is quite unique at f2 and beyond. Wouldn't be without it. It has stops to F11. Am I to understand this lens was manufactured in 1913 based on the serial # chart? If so, truly remarkable lens.
Best regards,Wil
On Friday, August 5, 2016 5:39 AM, "Mark Matusiak mmatusiak@... [ZICG]" wrote:
?
This lens is included in a batch of 3000 lenses completed 3 June
1939.? It does not appear to be coated, as judged from the photos,
lacking any sort of amber or other color highlights.? No "T"
markings either, but that alone is not dispositive.?