Zeiss Coating Question

[klop]

I have two collapsible Carl Zeiss Jena Sonnar f2 lenses, both look coated but only one has the red T... Did Zeiss produce coated lenses without the red T ?

 

[Xmas]

I have two collapsible Carl Zeiss Jena Sonnar f2 lenses, both look coated but only one has the red T... Did Zeiss produce coated lenses without the red T ?

Post WWII most of the small optical companies coated uncoated lenses it was the fashion of the time, like selfies are today. The classifieds in AP had a half column of companies competing for your lens.

The coating process needed a prepolish on a nodding machine with an exact radia with a 'final' abrasive to key the hard coating.

Few lenses made pre WWII were coated.

 

[gorbas]

Hi Klop, are they in Contax, LTM or some other mount?
Sorry can't help you with your question. I have one from 1943, #27094##, but it's coated, red T.

 

[klop]

Hi Klop, are they in Contax, LTM or some other mount?
Sorry can't help you with your question. I have one from 1943, #27094##, but it's coated, red T.

They are both Contax mount 1941 and 1936.
2684335, 1910791

Must be the light.....

 

[gorbas]

Thank you Klop!
Original lens body of my Sonnar was unrecognizable with quite few missing parts. Optical block found happy new home in Jupiter 8 LTM.