Carl Zeiss Jena Visionar 100mm f/1.6

Carl Zeiss Jena Visionar 100mm f/1.6 is a manual focus prime lens for full frame cameras.

Optical design

Has no aperture blades, this is among the rare lens which does not have aperture control function, works always wide open. Wide open, subjects located outside the depth of field are shown very blurred.

Physical characteristics

Weights 730 grams so it is a heavy lens, consider using its own lens bag. 100 mm long, requires consideration if you want to carry in the camera bag.