Leica Showcase Carl Zeiss Jena 13.5cm F4 Sonnar, uncoated

BrianS

Legend
Jul 7, 2010
Adapted to Leics mount using a Jupiter-11 focus mount. This one is from 1937, originally on Contax RF Mount.

Converted Sonnar by fiftyonepointsix, on Flickr

Converted Sonnar by fiftyonepointsix, on Flickr

Used a 0.01mm shim for final setting- focus is good from 2.5m closest focus to infinity. The J-11 mount, and wartime Zeiss mounts for Leica had the same limitation.
At F4,

Gunston Hall by fiftyonepointsix, on Flickr

Gunston Hall is actually inclined like this- I asked when noting all my shots of it were a little off.

Gunston Hall by fiftyonepointsix, on Flickr

This is a 4 element in 3 group Sonnar- and is amazingly free of distortion and is flare resistant.
 

BrianS

Legend
Jul 7, 2010
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Some Fall 2019 shots, taken late in the day. Warm enough to grill outside today.

Shots are wide-open. I used a J-11 mount to convert this lens for the Leica, close-focus is limited to 2.5m.

This lens captures the blue in the sky as I see it. This lens is uncoated.
 

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