I apologize for yet another Yongnuo question, but I've been asked to advise a friend on getting gear for his daughter. I have camera and Canon flashes and am not very familiar with Yongnuo, except they seem to be highly thought of here. And searches turn up mostly questions about triggers and manual flashes for some reason.
What Yongnuo flash would you recommend my friend get his daughter to use with the Digital Rebel SL1? I want it to work with the Canon flash metering system in the SL1.
I know all about Strobist.com and I would probably just go manual for my future purposes, but you can also use automatic flashes in manual mode. So to short-circuit a lot of wasted bandwidth, PLEASE don't post about how she's better off just using manual. Please. Just don't. I want her to decide to go that way herself and therefore I INSIST on a flash that will work with the Canon in auto modes. Period. End of discussion. Well that discussion. 
So which Yongnuo model should I recommend to go with the SL1? Thanks for the help. Not being in the market for a flash myself and YN making so many different models, and it being an after-market unit, I'm terrified of steering him the wrong way.
She's a 7th grader, by the way, and pretty much a beginner, but loves taking photos and wants to join a photo club. I chose the SL1 due to features/price. If I recommend a Canon branded flash to my buddy, his head would explode.
Thanks.



