information on a Apochromat Tessar 1:10 F = 640 mm lens

[barrybest]

Hello,

Coukd anyone tell me the specifications of this lens: Apochromat Tessar 1:10 F = 640 mm,
I want to use it for wett plate collodion photography, I can't find the coverage of the lens,

http://www.liveauctioneers.com/item/...-640-mm-c-1904

kind regards barry

[Dan Fromm]

Go here: http://www.cameraeccentric.com/html/info/zeiss_1.html , see p. 11. Remember that coverage at 1:1 is double coverage at infinity.

[E. von Hoegh]

A friend has an older Zeiss Apo Tessar that is backwards, that is the cemented pair is at what we would call the front of the barrel.