Focal length: 45mm
Mount: M39 Paxette (see last paragraph)
Aperture: F 2.8 - F 16
Min focus distance: 1m
Length (from flange): 18/21mm
[+ 25mm for the adapters], rear element protrudes 9mm
Diameter: 46mm
Weight: 86gr.

Some pictures:

A7 and the lens.

Sample pictures: ISO 320.

You may click on the sample image (except closest focus) for full resolution. The full resolution image opens in a new window,
so you can keep it open for comparison. Focus is on the satellite dish to the right of the big solar panel near the center of the photo.

F 2.8.

F 8.

F 16.

Closest focus is 0.88m from outermost edge of the lens. Focus on the program wheel of the camera.

This old lens was sold for Braun Paxette cameras. This is the second version of the Steinheil 50mm, due to aluminium much lighter than the first version. The pictures were taken on an extremely bright morning, just when the moisture rose into the air. So there might be less contrast than usual. Wide open it's soft towards the edges. Stopped down it's fine. At F16 you can see what it is capable of. It's an astonishing little lens, nice, seen it's price.

The M39 Paxette Mount is the same thread as ordinary M39 (Leica), but  a different flange focal distance.
Please refer to the Paxette lens page.