Focus
Manual
Mount
Leica screw mount (M39)
Notes
Also supplied with Reid cameras. Optical module thread-compatible with Leitz Hektor 135mm f/4.5 focusing unit. Known for smooth bokeh.
Format
35mm full frame
Coating
Single-coated (post-WWII); some uncoated
Country
United Kingdom
Made By
J.H. Dallmeyer Ltd, London
Weight
220g
Filter Thread
36mm
Production
Late 1940s–1960s
Stabilized
No
Filter Type
A36 push-on
Max Aperture
f/4.5
Min Aperture
f/22
Focal Length
135mm
Min Focus Distance
150cm
Elements Note
Not publicly documented; likely Hektor-type design
Weather Sealed
No
Aperture Blades
10
Rangefinder Coupled
Yes