THE HACKER'S GUIDE TO THE SX-70

Flash adapters for the Polaroid SX-70

The adapter plugs into the flashbar slot and provides a x-sync standard pc socket where you can connect any electronic flash or radio remote.
The sync voltage can be 3 - 300 V so new and old flashes work.
The flash side is completely isolated from the camera side.

Circuit

The resistors mimic the presence of a good flashbulb at position 1.
The ignition pulse fires the optocoupler.

Build one yourself

I recommend that you use a spent flashbar and use its contact strip and enclosure.
You find pc sockets in old, broken cameras.
All other components are standard parts, available at electronics suppliers.

send me an e-mail.

flash@sx2pc.com

Here are some exemples of photos shot with the adapter.