Old Sarge said:
Which has caused my old brain to start wondering why nobody has reverse engineered the WFT-E7A and produced a cheaper model. There are off-brand battery grips, selling for a fraction of the cost of a Canon. Surely it wouldn't be too difficult to manufacture a wi-fi unit which sold in the $300.00 range....or perhaps it is too difficult which is why I'm never heard of one.
I assume the latter - look at the disastrous performance of Yn's rt flash transmitter clone which obviously made them delay their whole line of announced rt flashes.
It's true that wifi is standardized and it should be easier to implement, but sub-par radio performance is annoying and will make a lot of people buy the more expensive, but working model. With battery grips it doesn't matter as much for non-critical shooting if you can buy 3x-4x clones for the price of 1x original.