Are there any wireless triggering solutions other than PocketWizard, Phottix, and RadioPopper that allow adjustment of flash settings from the camera?
Ideally I'd love a non-TTL trigger with the aforementioned capability. Surely most of the cost of TTL transceiver systems is in the software engineering?
EDIT:
I don't wish to upgrade to a 5D3 / 6D or 600EXRT

