Canon EOS 6D hot shoe to 5v logic trigger

[CommanderLake]

Not sure where this thread should go so please move it if required.
I'm trying to use the hot shoe of a Canon EOS 6D to trigger a 5v logic circuit for a Picaxe but the pulse from the camera is triangular with a width of about 130nS and a peak of about 950mV which is too small to amplify with anything I have.

I have:
OPA197 in a DIP socket
A few BC547C and BC557C
2x ZVN3310A

How could I convert such a small pulse into something a Picaxe can use?

 

[CommanderLake]

Sorry posted too early, I just found out the hot shoe is a switch that closes to trigger the flash.