Steinheil Culminar 85mm 2.8 (05) - a photo on Flickriver

            Steinheil München Culminar 1:2.8 f=85mm .
German LTM (M39) Lens.
Production year not exactly known but probably late 1940's and/or early 1950's.


One of the lesser known lenses with LTM (Leica Thread Mount) (M39 thread).
I bought this lens on a recent Photographica Fair here in The Netherlands.

It was cheap and did fit surprisingly well to my Canon 7.
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I had quite a hard time getting the M39 Adapter from the Focus Sub-Assy.
Excessive force was needed to unscrew it.

Steinheil uses 3 Set-Screws (see blue arrow) to fix it in its end position.
However when they prepared the holes (see green arrow) for the Set-Screws they didn't clean well.
As a result small aluminium chips got embedded in the thread.

Furthermore these Set-Screws are located in such a way that they punch and deform the thread (see red arrow) making matters even worse !

So i spent quite some time cleaning and repairing the threads on the focus part and the M39 adapter.
Wooden toothpicks and an ex-dental hook are perfect for that job (as is patience).
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WARNING : 
This image is intended as a reference for the more experienced camera service man. If you have no experience in camera repair please do yourself a favor and send your lens to a professional service shop. It would be a pity to lose a vintage lens in a failed repair attempt !

 
   

Taken on: November 21, 2014

Tags:

Steinheil

München

1:2.8

85mm

LTM

M39

Lens

Rear

Flange

Thread

Adapter

Cleaning

Repair

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Sets appears in: • Steinheil Culminar 85mm 2.8 lens (LTM)

Groups appears in: • Camera Repairs • Classic Camera Repair & Maintenance

Stats: 5,408 views / 11 comments

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