Leica Carl Zeiss Jena 5cm F1.5 Sonnar "T", LTM Mount

BrianS

Hall of Famer
Apr 3, 2013
The Wartime 5cm F1.5 Sonnar "T" in Leica mount- this one from 1943. The sonnar was recomputed in 1939, improved resolution and sharpness of field compared with the pre-war version. A lighter alloy used for the barrel, and hidden set screws used to secure the namering and rear fixture.

Wide-Open on the M9.

25285805876_ef6ebbcba4_b.jpg
Gunston Hall 2, 1943 Sonnar 5cm F1.5, Wide-Open
by fiftyonepointsix, on Flickr

At F4,

25285804616_d0a8d9459a_b.jpg
Gunston Hall 2, 1943 Sonnar 5cm F1.5
by fiftyonepointsix, on Flickr

F1.5,

25285802756_7e6bd584eb_b.jpg
Gunston Hall 2, 1943 Sonnar 5cm F1.5
by fiftyonepointsix, on Flickr

F4,

25285801566_e12f2fc7ab_b.jpg
Gunston Hall 2, 1943 Sonnar 5cm F1.5
by fiftyonepointsix, on Flickr
 
Last edited:

BrianS

Hall of Famer
Apr 3, 2013
At F4,

Manassas Battlefield
by fiftyonepointsix, on Flickr

Manassas Battlefield
by fiftyonepointsix, on Flickr

The focus mount of this version Sonnar is fragile. This one is good, probably not used much: the middle triplet was loose when I got it, did not hold focus. I have another one that saw heavy use, the helical was loose and the focus had a lot of slop in it. For that one; I made a sleeve for the mechanism to hold the inner helical steady as it was used.
 

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