Canon Speedlite Transmitter ST-E3-RT Version 2

Wireless sync is rock-solid even when my speedlite is tucked behind a wall or in a softbox, and the menu layout is much faster to navigate than the older version.

I was worried radio triggers would be finicky, but this thing fired my speedlites perfectly through a wall and across a large courtyard, no line of sight needed. The 30m reach is no joke, and the controls feel solid and responsive in my hand.

The 30m range is solid even when shooting through walls at a crowded event, which saved me from line-of-sight issues. Setup was quick and the controls feel intuitive right out of the box, making this a reliable workhorse for my strobes.