The Canon Speedlite EL-10 builds on the success of the 430EX III-RT, repurposed for the latest EOS R system cameras.

Impressed by the small size and simple operation of disposable camera flashes, [Joshua] lifted a ... him to attach the firing circuitry to his Canon’s hot shoe without the risk of putting ...

After previously tearing down a transmitter, our intrepid engineer now tackles the other end of the wireless connection.