The Flash Unit: Connecting to a Trigger
If
your flash unit has a PC cord, you can connect the cord
directly to your trigger. The end to connect is the
male end, labeled Camera in the photo
to the right. (This is the end that would normally connect
to the camera.) You could simply cut off this end of
the cable, strip the wires, and splice them to your
trigger wires. This, of course, would remove your
PC cord from service as a flash-to-camera cord. In order
to retain this functionality, we recommend instead that
you obtain a PC extension cord. These are sold at virtually
any camera store. Then splice the trigger wires to the
male end of the extension cord. The other end then plugs
into the PC cord from your flash. (You may wonder why
not just go down to Radio Shack and buy a PC cable end
to connect to your trigger wires. The problem is that
there's no convenient consumer source for these.)
[Here's a method of making connections that doesn't require any cutting or splicing.]
Many
modern flash units don't come with PC cords. These units
are dedicated to use with particular cameras and are
triggered by the hot shoe of the camera. They typically
have a pattern of several contacts on the flash foot,
as shown in the photo to the right. (A non-dedicated
flash would have only one contact in the center of the
foot.) In order to use one of these flash units
with a trigger, you can connect a flash-shoe-to-PC-cord
adapter to the flash foot. One of these is shown in
the left-hand diagram below. The flash unit would mount
onto the shoe of the adapter. The PC cord would then
be connected to the trigger. (For high-speed photography,
one would not mount the adapter onto the camera's
hot shoe.) Some of these adapters have 1/4" standard
tripod threads in the base which would make it easy
to mount the adapter onto a mini-tripod such as described
in Accessories. The diagram
on the right below shows the adapter mounted on the
flash unit.
| Flash-shoe-to-PC-cord adapter |
Adapter mounted on flash unit (note tripod thread in bottom of adapter) |

