I have a Sony a77 which I would like to use a Minolta Program 5400HS with wirelessly. The flash works wirelessly because I use it with my Minolta film cameras. I have` tried everyway I can think of to get the flash to work wirelessly with the a77 but I am having no luck. Anybody have any experience of using this flash with this camera? I know the flash is designed to use with Minolta film cameras but I would think that being able to use A mount lenses with the a77 the flash would work wirelessly.