From my limited experience working on Rollei TLRs there is
some linkage between the release button and the shutter, at least
on the flex. On the cord and early flex the shutter release is
direct. The linkage can become stiff.
Now, there are two different mechanisms in Compur shutters.
One is the older type of shutter which has a booster spring for
the highest speed. The other is the EVS shutter which has a
single drive spring. The "trigger pull" on the older shutter is
significantly greater for the highest speed, the newer shutter is
constant. The older type shutters were a real problem on cameras
like the Speed Graphic which used magnetic solenoid flash
synchronizers. If set up for synch at low speeds the solenoid
would no longer be in synch for the highest speed. In fact, it
might not be strong enough to trip the shutter at all. Also,
because it drew a lot of current the bulb might not flash at the
highest speed. Tjos was also a problem with the Kodak shutters
which also had a second spring. Graflex and others who made
flashguns offered an extension to the case holding an additional
battery to overcome this. Of coarse it would also fire additional
bulbs. Other shutters, for instance the Wollensak. had constant
tripping pressure so did not suffer from this problem. I suspect
early Rolleiflex cameras which were modified for solenoid
synchronizers had the same problem.
My 2.8E is the newest Rollei I have. It has the EVS shutter
but the older type light meter. It has a smooth constant trip and
is almost silent (judged back when I could hear).
On 1/29/2020 12:45 AM, Ferdi Stutterheim (Redacted sender
fwstutterheim for DMARC) wrote:
Carlos,
The shutter release is not stiff. Half way the travel there is some resistance. I was told it is the meter switch. It has been this way from new. CLA helps a little bit but not much.
Ferdi.
Op 27 jan. 2020, om 13:45 heeft CarlosMFreaza <cmfreaza@xxxxxxxxx <mailto:cmfreaza@xxxxxxxxx>> het volgende geschreven:
El lun., 27 de ene. de 2020 06:45, wayne pinney <tennjed@xxxxxxxxxxx <mailto:tennjed@xxxxxxxxxxx>> escribió:
"....Another thing that was important to me was the note,
I think from Ferdi, about the stiffer shutter release on
the GX. If I have one major complaint about my old 2.8D it
is the fact that the shutter release is not so smooth. It
is not terrible, but it is one of the things about the
camera that I dwell on every time I use it. ..."
That is a CLA matter. My 3,5F and 2,8F received a complete CLA at FFS Service in Braunschweig, Germany within the last three years and I need to check the film transport crank sometimes to be sure I cocked the shutter, the button release is so smooth that I:m not sure I took the photograph if I did not hear the shutter for some reason, and it happens often...In the other hand, my 2, 8 C shutter release button is offering some resistance when you press it, but it was as smooth as the F shutter release button when its CLA was recent. If the memory serves me good, the GX shutter release button has cables and contacts close or around it and perhaps it could get dust and dirt more easily.
Carlos
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