They started multicoating before the war (around '36) but didn't
advertise it (military secret) until 1940, IIRC. Richard would know
exactly. Both the lenses in question are marked with the red T,
indicating a multicoating.
It will be fun trying them out, regardless.
Thor
On 26 Apr, 2006, at 23:17, Jeffery Smith wrote:
No aspherical surfaces. I'm not sure when they started multicoating, but I don't think that early. Zeiss used the designation of *T for their multicoating. When they began doing it, I don't know. I think that modern CNC machining and computer designing gives lenses from the last 20 years a decided advantage over the 50's designs. But they sure were good given the tools of that era.
At 03:57 PM 4/26/2006, you wrote:Let me be more specific - the cameras I bought both have 'black-nose' Zeiss-Opton 50mm f1.5 Sonnars, both from the 50's -60's, i.e. multicoated (T*).
So for all practical purposes, this IS a modern lens, no?
Thor
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