


Slave modes – Has the S1 and S2 like their other flashes, but the big news are about their wireless control! It can be a wireless slave to the master Canon580EXII (I didn’t checked it yet with the 550EX, but I think it will work too).Being able to get an ETTL wireless ability from a 3rd party flash is a surprising feature, you could get thi one to work in groups and channels.Sound – It makes a beep while charging and ready sound (some my like it and some won’t).Accuracy – This is the most important flash feature, I tested it for couple 100’s clicks and it looks very solid.Build quality – I must say that it looks very solid and I’m one that is used for Canon flash (no Vivitar and other 3rd party brands).Low weight – it weights less than the Canon 580EXII, although same size.High power- GN58 is what canon offers with their 580EXII.Here is my review for the YN565EX: PROS – What I like in the YN565EX review here: The 500EX is less powerful, but can do HSS (if you need it), and is a bit smaller. Update () : There is another YN flash that might interest you in this price range – YN500EX previewed here. The amateur flash will be the 320EX (220$) or the 430EXII (+250$), those ain’t cheap. When you look for Canon brand flash for under 200$, you’ll only find the Canon 270EX who is a light one, but very low power.
