Schneider Enlarging Lens Componar-S 2,8/50 mm
Optimum performance at enlargement scale around 8:1.
Lens speed: 2.8
Focal length: 50 mm
Elements: 4
Filter thread: 30 mm
Mounting thread: M 39 x 1
Max. film format: 24 x 36 mm
Click-stop disengaging, illuminated aperture scale.