The HiViz WorkShop
LAT-A: Light-Activated Trigger, Assembled
We'll assemble kits for you on a breadboard and test them with a Vivitar 283 flash unit. A 9-V battery or 9-V AC/DC Adapter is required to power the circuit. The circuits are designed to work with flash units and cameras that require a simple circuit closure for triggering. We provide a cable to connect to your flash unit, but you'll need to splice the cable to your flash unit's PC cord or to a Flash-to-PC adapter. Alternatively, you could connect the trigger to your camera with a Camera Opto-Switch or by this method.
We ship assembled circuits in sturdy cardboard boxes that resist crush. If you prefer to have your circuit shipped in a plastic project box, you can add one to your order here. Bear in mind that components can be dislodged in transit and in use. That's the nature of a breadboarded circuit. We will be happy to correspond with you about fixing tech problems that may arise in the initial use of the circuit.
The
completed circuit for a light-activated trigger is shown
above. While the photo shows the phototransistor mounted
on the breadboard, we'll prepare a cable like that shown
to the right so that the phototransistor can be moved away
from the breadboard. Click on the photos for larger views.