No lubricant is used on the rings. It sounds like you just cleaned the
rings while they were installed in the lens. You should disassemble
the rings and clean both them and the surfaces they slide on.
Mark
On Oct 4, 2004, at 12:50 AM, Gordon Ross wrote:
> Hi Bill:
>
> Yes and no. Yes you are right and no because I am a renaissance man I
> have
> to challenge it first. What I found is that the spring is OK the
> 'drag' is
> in the ring that fits in the slot that fits around the inside of the
> lens.
> Using alcohol and a Q tip I cleaned it up and the aperture worked
> great.
> However, as the alcohol dried the lens slipped back into it;s slow
> behaviour. This is where tips may be helpful, is there a lubricant used
> here, or just more cleaning?
>
> Thanks Gord
> ----- Original Message -----
> From: <NSURIT@xxxxxxx>
>> gordross@xxxxxxx writes:
>>
>> I just received the 50/1.2 and it is in nice condition. The only
>> issue
>> seems
>> to be a slow returning aperture. Is there a quick fix
>>
>>
>>
>> Camtech or Photosphere for a CLA. Bill Barber
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