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Lens focus question


lars_bergquist

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There are of course ways to adjust the M rangefinder. But if just one lens is off, how difficult is the adjustment? Is it a do-it-yourself project, a job for a very qualified independent technician, or strictly for the gnomes of Solms?

 

The old man from the Age of Take It Or Leave It Focus

Übrigens bin ich der Meinung (by now you can fill in the rest)

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If it's only one lens that has a problem then it's almost certainly the lens that needs adjustment. It's not a DIY job. The person has to know how to adjust the lens (shims, thread rotation etc.) and then the equipment to verify the adjustment. A collimator is usually used but I know of respected repairers who will still use a reference camera and ground glass screen.

 

Here's a list that may help: Leica FAQ - Where can I get Leica repairs done?

 

Bob.

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Lars--

As others have said: A job for a very competent technician, not DIY.

 

But some lenses are trickier than others.

 

I recently asked Leica NJ to check my Canadian 75/1.4 for focus problems on the M8. Although I think Allendale will do some lenses, they sent the Summilux to Solms.

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Although any human undertaking can be attempted as a DIY project, given the expertise and right tools,the fact that you ask suggests that this one is better left to an expert. Are you sure the lens misfocusses? I saw the need to send my 90 AA to Will van Manen to adjust. It turned out I had been infected with backfocussing fever by this forum :(...

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This is a 90mm Elmarit-M that is unsharp at infinity, and backfocuses by 15 centimetres at 3 m. You are right, is is a Solms venture. I took a chance on that lens at an auction. You can't win always; now I know why the previous owner dumped it, and why it is in mint condition.

 

The angry old man from the Age of Craftsmanship

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