View Full Version : Carl Zeiss Jena tessar 17.5cm info ?

11-Oct-2018, 13:29
hello i have carl zeiss jena tessar 17.5cm i could not find any info on this lens. does anyone know coverage etc?

Dan Fromm
11-Oct-2018, 14:14
A Tessar's coverage depends on the lens' age and maximum aperture. What's your lens' serial number? What is its maximum aperture?