P3D Re: Re Twin ZX-Ms

[boris@xxxxxxxxxxxx (Boris Starosta)]

>From: George Themelis <gthemelis@xxxxxxxxx>
...
>> >Boris, are you:
>> >- Firing one camera, which fires the other?
>> >- Or using two combined remote releases with one trigger?
...
>> I am doing both.  I wired myself a cable which simply links
>> the two cameras in parallel.  Firing either one fires the
>> other simultaneously.
...
>Wouldn't it be more intuitive to connect the wires to one switch
>so when you press the switch both camreras receive the same
>signal at the same time?


I'm not much of an electrician, but my intuition tells me this:  When the
cameras are simply wired together (or, equivalently, when one camera has
the stock remote release attached), then you have a parallel circuit with
two switches in it.

                 |
                 |
       __________|___________
       |                     |
       |                     |
      /                     /
       |                     |
       |_____________________|
                 |
                 |
                 |

(Actually, in this case there are two circuits and four switches - one
circuit for awakening the camera "ready," and the second circuit for
releasing the shutter.  But for the sake of simplifying this discussion, we
assume a single circuit).

So in this parallel arrangement, closing either switch closes the necessary
circuit.  When I attach the remote to my "twin connector wire," I am adding
a third switch in parallel.  Then, any of the three switches can then close
the circuit.  It's always just one switch doing the work.

                 |
                 |
       __________|__________
       |         |          |
       |         |          |
      /         /          /
       |         |          |
       |_________|__________|
                 |
                 |
                 |

Boris

- Science is the part of culture that rubs against the world.
-
-                                     Stanislaw Lem, _His Master's Voice_

Boris Starosta                        boris@xxxxxxxxxxxx
Stereoscopic Art & 3-D Photography    http://www.starosta.com
usa - 804 979 3930                    http://www.starosta.com/3dshowcase