TOKINA RMC 25-50mm 1:4

Focal length: 25-50mm
Mount: Contax/Yashica
Aperture: F 4 - F 22
Min focus distance: 0.50m
Length (from flange): 59/65mm
[+ 27mm for the adapter]
Diameter: 66mm
Weight: 330gr.

Some pictures:

A7 and the lens at 35mm, shortest extension, at 25mm it extends again.

A7 and the lens at 50mm, it doesn't extend much.

Sample pictures: 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.

25mm F 4.

25mm F 8.

25mm F 22.

50mm, F 4.

50mm F 8.

50mm F 22.

Closest focus is 40cm from outermost edge of the lens (F 8, 50mm). Focus on the program wheel of the camera.

A nice lens, I came across it by chance and for cheap. At F 4 it's soft at the edges, but gets much better when stopped down.. It has good capabilities of close focussing for such a wide lens. Carefully aligned there is no distortion. The focus range isn't bad for street photography.