04-17-2017 05:32 PM
You aren't missing anything. You can transfer the files directly from the camera to the tablet or phone when it's connected by a wire to the camera (no need for a card reader). If you do it wirelessly then you only get the jpg previews generated by the camera.
You can then edit the raw files. You can see on the tablet which files you want to download and then bring them in. It's been ages since I did it, but it worked fine. I don't do it now because it doesn't seem worth while for the hassle and I'm usually just as close to the laptop as I would be to transfer it to the device by wire. But you might find that taking a tablet on location is a lot easier than lugging a laptop with you.