Some cool flash photo images:
DIY Flash
Image by Miles Cave
A small flash with optical triger I built as a gift.
It is strongly based on Victor's schematics.
I built 6 of them and they all worked less than the previuus one. Turns out I had a very dead battery.
Works like a charm.
Power button/trigger button
Auto power off
Optical slave (dumb)
Strobist info;
I'll let you guess!
(hint, it's behind the can)