I know there are a lot of solutions for wirelessly tethering or transferring files, but it's not clear if I can use any of these solutions to just preview and delete photos?
My use-case is after a day of shooting, to use a larger screen (ipad) to quickly go through and delete lots of photos. I want to be able to keep the cheapest iPad and not have to worry about storage issues.
Are there any dongles, SD accessories, or wireless devices that support this really well? If you've tried this, are they really slow previewing/deleting to the card?
** It looks like Canon 6d and the EOS wifi app allows previewing and deleting. Any solution like this for the 5D Mark III? http://blog.martinbelan.com/2013/02/the-new-wi-fi-feature-on-the-canon-6d/