The video here is the Yongnuo set up in action. Basically he is creating a very small version of a high key setup. I have done the exact same thing before in my home studio garage with some great results. My high key portraiture is one of the most requested services by my clients and I always use Yongnuo’s to light them.
The links below will take you to Amazon and I’m putting yet another video on the next page with an unbiased review from a pro photographer who has both the Canon and Yongnuo.
Once again this is 4 YONGNUO YN600EX-RT Master TTL Flash Speedlites for Canon
With a YONGNUO YN-E3-RT E3-RT E3RT TTL Flash Speedlite Wireless Transmitter for Canon
I use them almost every day. Yongnuo speedlites and triggers. Never had any issues with them.