EDIT: The Photo Trigger is now available for sale. For more information please visit the web site at www.PhotoTriggers.com This post was made in early April 2011, since then several changes to the specifications have been made. Please see later in the thread for the current position. After about 6 months of pestering by John CGeezer he has worn me down and I have started work on out combined idea of a universal triggering device for cameras. The electronics are currently at the prototype stage with the inputs causing LEDs to flash rather than cameras but within about a week we should be at the full flash and camera activating prototype stage. I know that most of what we are doing has been done before but the problem is that most of it requires people to import the stuff themselves or build stuff themselves which is not always possible. Anyway they will be available within a couple of months fully assembled and working (I'm VAT registered too) but the general idea is as follows: Control box which will be powered by maybe 2 x 9V batteries or maybe mains/12V socket These are the controls/indicators on the box Manual focus Manual trigger LEDs showing Power Trigger input Trigger being delayed Trigger output Low battery Switch for delay ranges OFF 0-1 seconds 1-10 seconds 10-60 seconds 1-5 minutes Adjuster for delay Connections [modified 13/4/11] PC sync for flash (500V max) Universal camera connection Internal RF603 connection for RF603 transmitter Manual focus/trigger switch (included) Power Trigger interface connection Possibly..... Switch for number of shots (1-10) Trigger interfaces So far envisioned with more if people have any ideas: Short beam breaker Water drops Items dropped into water Small items floating in mid air eg coin etc with adjustable light power, adjustable sensor gain Sound detector Smashing glass Hammer blast Gun going off etc with adjustable gain (I can add a pre-amp to make it more sensitive) Alarm system interface Connects to PIR for movement (birds at feeder, cats, wildlife etc) Connects to reed switches for doors, windows, cat flaps etc Connects to pressure sensor Connects to central heating system controller for timed photos! Complete with all the normal alarm system connections Light interface Detect lightning etc with adjustable sensitivity These are the outputs I have envisioned: [edited 13/4/11] Universal camera socket (Nikon/Canon/Olympus/Sony etc leads) 500V Flash output (works with old flashes too!) RF603 input & output (requires optional RF603s which will be connected inside or outside!) So here we go...... What do you think? Is there anything we have missed? Would you like anything added? Is there much call for a £10-15 RF602 500v adapter to work separately from the above?