50mm summicron 3rd version (?)- aperture blade problem/repair question?

[jaques]

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I have a chance to bid on a job lot of Leica gear on Monday- there are a few lenses in the lot- the best of which is a pre-asph summicron 50. I think it is type 3- (it has the focus rounded tab with no indent for your thumb?) Anyhow the lens is in good condition except that when I played around with it I saw that the aperture blades were not opening fully at f2 and looked slightly irregular. I understand at f2 these don't necessarily open all the way- but this was definitely not normal and moving it back and forth it didn't always stop in the same position at f2 so there was definitely an issue. The blades themselves looked good, clean with no visible damage/deformations...

 

I am wondering if anyone knows if this is a common issue, the likely cause, and how hard/expensive it might be to have repaired? .

[pedaes]

A routine CLA will probably sort it so I would budget for one in your bidding decision. Good luck (and don't forget the buyers premium and tax).

[Danner]

CLA is about US $100.

[pedaes]

25 minutes ago, Danner said:

CLA is about US $100.

You get fantatstic value CLA's in the US. This side of the Atlantic a CLA at a reputable place is at least £/€150 - twice as much. 

Edited May 29, 2021 by pedaes

[jaques]

Ha ha- I WON!

 

For considerably less than I had budgeted...

Go to collect this evening- will drop the lens off with my local repairman. Hopefully it's a simple adjustment and nothing too serious.

[pedaes]

4 hours ago, jaques said:

Ha ha- I WON!

 

Congratulations!