Lens focus adjustment

[helged]

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Hi,

from a hobby perspective and likely even more so from a professional perspective, little compares with fine-adjusted Leica lenses on a rangefinder body. Lenses that focus spot on makes the Leica system feel like an instrument, not a toy. A nice feeling and a very accurate instrument, indeed!

 

The problem is that lenses and bodies may need focus/rangefinder adjustment now and then. Regarding focus adjustment of M-lenses:

 

Are there differences between M-lenses regarding fine-tuning of the focus? Implying that some lenses are particularly tricky to get correctly adjusted?

 

Up to now I have been thinking that it's good to avoid shipping all trouble equipment to Solms, time-wise and possibly also money-wise. But if certain lenses are particularly tricky, Solms is likely doing a better/more consistent job than local work-shops.

 

Presently I have a 90mm Summicorn AA that is front-focussing quite badly. Possibly a lens for Solms and not a local workshop?

 

Thanks!

 

Helge

[Fgcm]

A skilled local lab can adjust your lenses as well as Leica.

 

Leica customer service provides a great service, people are polite, reliable, skilled.

I can tell only good thinks about.

 

But a local lab costs a fraction for a lens calibration

In Milano a CLA for a complex lens like a 50 Summilux Asph cost about 100 euro.

The lab did a perfect job on my lens.

 

Franco

[jaapv]

The Summicron 90 AA is a particularly difficult lens that is challenging even for Leica.

It needs a highly skilled repairman to adjust, you will find their names mentioned in this forum. I had mine adjusted by Will van Manen. Once a lens is adjusted correctly it is nearly impossible that it will go off, unless something catastrophic happens to it.