[pure-silver] Re: rollei not fixed

As an example, the lens shutters of Hasselblad cameras. The viscosity of the
lubricants are affected by temperature, dirt and age. Shutter operation is
improved  if shutters have been cleaned and lubricated recently. Another
suggestion is to operate all the shutter speeds a few times to get the
lubricant 'working'.

See 'The Hasselblad Manual' by Ernst Wildi, 4th edition, page 319.






Regards



Ralph W. Lambrecht




On 11/30/04 10:58 PM, "Ryuji Suzuki" <rs@xxxxxxxxxxxxxxx> wrote:

> From: DarkroomMagic <info@xxxxxxxxxxxxxxxx>
> Subject: [pure-silver] Re: rollei not fixed
> Date: Tue, 30 Nov 2004 22:48:05 +0100
> 
>> How did you measure the 1/60 time? How is the shutter performing at other
>> speeds? Try to work the shutter at all speeds a few times (3-5), and test
>> again!
> 
> If the shutter needs that kind of exercise befote getting the correct
> speed, it is malfunctioning. It should fire reasonably accurately 10
> out of 10 times from the beginning.
> 
>> I believe, the viscosity increase of aging grease in the shutter is the
>> reason for slowing shutters. This grease needs to be cleaned out and
>> replaced every couple decades or so. Ask if they did that.
> 
> What kind of shutter requires grease?
> --
> Ryuji Suzuki
> "Keep a good head and always carry a light camera."
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