Olympus twin cable release

[P3D Bob Aldridge <bob.aldridge@xxxxxx>]

Greg Kane wrote:

->     A while back someone asked where to buy dual cable releases (you 
->push one button, two cameras go off), and asked me to report back
->after my mail-order cable release came in.
-> 
->     Olympus still makes a dual cable release, and I ordered one from 
->Adorama (NY, NY, 800/  223-2500) a month ago.  Adorama had to get it
->from Olympus, so it took 4 weeks to arrive.  Got here today. 
->Excellent.  Heavy duty.  Adjustable -- turn a screw on one release to
->move the plunger in and out.  This should let you adjust synch timing.
-> 
->    Both attachment screws are cone shaped.  (That matters.  I found
->a used Pentax dual cable release, but one screw was cylindar shaped,
->and wouldn't fit my OM2.)  The cables themselves are short, but long
->enough for my twin-rig
-> 
->    Adorama charged $35.  Local camera superstore wanted $80 (ouch),
->then didn't have the release in stock like they promised.  If you
->need to order one, Olympus' official name for it is "dual cable
->release." 
->Greg Kane
->Denver
-> 
-> 
->PS.  Since one OM2 is in the camera hospital, I still can't say how
->well the dual release will synch the twin rig.

When you try out your dual cable release, you'll find that you need to
firmly anchor the plunger end so it doesn't move relative to the two
cameras. Otherwise, the synch will be variable as the cables flex and
change their relative lengths. 

This is a very good cable - strongly built and therefore not too
flexible. It is designed to be used with the Olympus bellows attachment
- one cable stops the lens down just before the shutter is tripped, so
flexibility is not an issue.

If you're using Olympus cameras on a rigid bar, you might like to
experiment with tripping the shutters via the mechanism built in for the
motor drives. On these, a pin moves along in the base of the camera and
moves a lever which trips the shutter. As this moves along the base of
the camera, it is possible to make a shaft, sliding in the bar with two
pins to release the two shutters together. 

This makes an excellent twin rig, with the bonus that no modifications
are needed to the two cameras. If you do make one of these, you could do
with examinine one of the motor drives (or auto-winders) to check on
other details - e.g. there's a little fixed pin that engages with a hole
in the bottom of the camera. Using similar pins on the twin rig helps to
keep the two cameras aligned.

My version of this arrangement is capable of synching the flames
inflating hot air balloons...


Bob Aldridge
Stereoscopic Society Projectionist
---
 * POW 2.0  0007 * Computers make very fast, very accurate mistakes.


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