Leitz Wetzlar Summicron M 90/2

This made in Canada lens is quiet heavy for it size/ focal length, built in tripod collar  indicate that.
Spec;

15 blades aperture

Close Focus Written: 1m and 3.5 ft.

Year ; 1960  

weight: 22.410 oz. (635.4g),
built in hood
Filter ring; 48mm

all shot wide open

first test wide open


cropped on center