Faulty Voigtlander lens on M8.

[SiOnara]

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Hi all,

 

Just wondered if anyone had any problems with the Voigtlander 35mm f2.5 PII lens.

 

I purchased it second hand from Classic Cameras London about 2 months ago and over the past week I have noticed the barrel is loose. The front end of the lens (aperture ring and filter thread) rotates slightly and it seems to be getting worse.

 

I have a feeling and second hand goods at Classic Camera will be under a 6 month warranty so I don't really want to attempt to fix it myself but I was curious if anyone else had come across this problem?

 

Thanks, Jei

[Xmas]

Hi

 

Many of the CV lenses 'self dismantle', Cosina don't seem to issue nail varnish to their assembly ladies.

 

Some Leica lenses ditto.

 

Noel

[LotharZhou]

I bought the same lens from the same shop 17 months ago, the first one is very soft and blur on the right edge, unacceptable, the shop swapped another one for me, works great, only left top corner is slightly soft depending on incoming light directions.

 

The quality control at cosina is a major issue.

[SiOnara]

I have been very happy with the lens over all. Hope they will fix it.

[Carl E]

I had the same problem with my 35 PII-M, but it was easily fixed by a local service guy with experience from classic lens designs. I believe he just loosened the barrel bushing (or whatever the term is) and tightened whatever needed to be tightened inside. It worked fine afterwards.

[farnz]

I have been very happy with the lens over all. Hope they will fix it.

Please let us know how you get on with TCC.

 

Pete.

[mike_j]

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My Zeiss 28mm (another cosina lens) loosens up regularly. I just have to retighten the retaining ring. I'm tempted to put a drop of loktite on it but I can't actually see the threaded section and I'm wary of getting the loktite where it shouldn't go.

[Xmas]

Locktight on a lens retaining ring is undesirable, it can and does leave small pieces behind, which can make subsequent repair difficult.

 

If you must and it is not recommended, a dab of garish nail varnish at edge of ring will freeze it without penetrating and can be detected and removed with nail varnish remover. It is cruel to use transparent varnish.

 

It is however best to get a ring spanner, or make up a similar special tool and torque it a little more, incrementally until it does not undo in service. e.g. file a small pair of needle nosed pliers, until they just bottom in the ring drivers. You do need to avoid slips...

 

Noel

[earleygallery]

I've got a few CV lenses and they're all fine. I've read about plenty of Leica lenses lossening up too.

 

Good luck with having to go back to classic camera!

[tobey bilek]

The ones i bought 10 years ago, I fixed myself. They were 12/15/25 Have not bought any since.

 

They are not a top tier supplier so you get what you pay for.

[Xmas]

Hi Tobey

 

You mean like performance not detectable different cheaper?

 

Noel