I'm not going to say that I'm switching to Sony as I am keeping all of my Canon gear, but for now I intend to shoot most of my work on Sony Mirrorless cameras. The downside of this is of course financial. Lenses, speedlights, and all of the little accessories that I take for granted need to be re-purchased, but there are some ways of easing the pain that include different adaptors and universal accessories.
Speedlights have been a key part of my workflow for a while, but I am transitioning away from them in favour of some more powerful lighting in some circumstance; however, there are times when a speedlight is the simplest and lightest option. While I would like a set of Sony speedlights it is far down the list at the moment, and I already own two Canon 600 EX speedlights, so I would like to make continued use of those since they represent a significant investment on their own.
Having invested in some Rotolight and Elinchrom gear I already have a Rotolight EL-Skyport Transmitter Plus HS which allows me to work wirelessly with both the Elinchrom and Rotolight gear. To go out and buy another Sony transmitter and speedlight is not something that I want to do at the moment, so I purchased the Elinchrom EL-Skyport Receiver Plus. For the money, this is a simple solution that allows me to use almost any speedlight with my Sony cameras and also incorporate them into my other lighting setups with Elinchrom or Rotolight.
1. The Rotolight EL-Skyport Transmitter Plus HS is compatible with the EL-Skyport Receiver Plus
2. The EL-Skyport Receiver Plus allows me to trigger my Canon Flash from the Sony Camera using the Rotolight EL-Skyport Transmitter Plus HS although it becomes a 'manual mode only' flash (which is fine for me and what I am using it for).
3. I can trigger both the Canon Speedlight and my Rotolight Aeos v2 simultaneously using the Rotolight EL-Skyport Transmitter Plus HS mounted to the Sony A7RIII.