yes indeed you're correct Tom, just forgot the meaning of the * (multicoated) after the T, single coated indeed it is.
Sorry for the confusion.
PS- I really don't understand Andrey's fixation with the multicoating, a single coated optic with a shade, it´s a killer combo, whatever!
My East German Tessar is razor sharp and with good contrast.
Cheers
André
Yes Sorry for the confusion.
PS- I really don't understand Andrey's fixation with the multicoating, a single coated optic with a shade, it´s a killer combo, whatever!
My East German Tessar is razor sharp and with good contrast.
Cheers
André, my East German Tessar is razor sharp as well!
My Ercona 6x9 has a single coated 105mm/3.5 Carl Zeiss Jena Tessar, in Tempor shutter.
There is a logo (a circle bisected by a 1) engraved in the lens ring to the immediate right of the T in Tessar
No T*, but inspection with a microscope shows that there was a Red engraved T that had been filled in with black paint. The Carl Zeiss Jena was also filled in and covered over by black paint.
A Red T signified Zeiss Jena Single Coating. A Red T* would signify Zeiss multicoating.
I checked the number of color reflections produced by a point light source at the lens surface and the single color result I obtained is consistent with a single anti reflective coating layer.
By comparison, the same light source (a blue/white LED) produced 6 different colored reflections with my brand new multicoated (Red T*) Carl Zeiss 50mm f1.5 C Sonnar ZM lens