[rollei_list] Re: information on value
- From: "Richard Knoppow" <dickburk@xxxxxxxxxxxxx>
- To: <rollei_list@xxxxxxxxxxxxx>
- Date: Fri, 4 Jan 2008 11:43:47 -0800
----- Original Message -----
From: "Richard Sintchak" <rich815@xxxxxxxxx>
To: <rollei_list@xxxxxxxxxxxxx>
Sent: Wednesday, January 02, 2008 4:50 PM
Subject: [rollei_list] Re: information on value
Sounds nice. But often a camera that old in such nice
aesthetic
condition has not seen much shutter exercise and therefore
might have
issues there. How is the shutter working? Do the speeds
seem good?
Any stickiness or delays? If so which speeds? Sticky
slower speeds
often can mean a simple CLA can get it in working order
again. Sticky
faster speeds but good slower speeds can sometimes mean a
more serious
issue...or so I've heard.....
Richard S.
On 1/2/08, Paty777777@xxxxxxx <Paty777777@xxxxxxx> wrote:
I have a rolleiflex 2.8 d e-v scale 1955 with a serial #
1615XXX with the
following:
rolleimeter, rolleigrid, rolleikin, schneider-kreuznach
xenotar 1:2.8/80
lens, mirror lens cap, sun shade, case, assorted filters.
The entire collection is in MINT AAA condition. There are
no dings or marks
on any of the equipment. The cases on everything are like
brand new. I am
planning on selling these items and would like opinions
on value.
Sticky upper speeds also mean the shutter is dirty. Low
speed problems mostly come from lubricant on the clockwork
speed regulator having gotten gummy with age. High speed
stickiness often comes from something on the shutter blades,
for instance oil from careless shutter work. In any case the
cure is a thorough cleaning and re-lubrication of the
shutter. Modern lubricants are mostly synthetics. These have
a very long life because they do not oxidize and don't
evaporate. However, they collect dirt just like the old ones
so shutters still need service occasionally. A good cleaning
should last for ten years unless the camera is used very
heavily or used in very dirty locations.
Excercizing a sticky shutter can sometimes get rid of
the stickyness by pushing off the gummy lubricant but the
shutter still needs service and eventually will stick again.
Most shutters will come back to speed when properly
cleaned. For the most part the idea that springs get weak
with age is a myth. What does weaken springs is constant
use, which can cause work hardening in some materials.
Simply being compressed or tensioned for long periods will
not weaken the spring unless its stretched to near its
elastic limit.
---
Richard Knoppow
Los Angeles, CA, USA
dickburk@xxxxxxxxxxxxx
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