The frustrating part of the Camera Connect app by Canon is that it is NOT useful when shooting RAW.
IF you shoot RAW, you ONLY can transfer a small version of the JPG. There is no option for "Convert RAW to JPEG with max quality, reduced quality, etc".
You only get the smallest files available. I.E. a 400kb file on my 30Megapixel Canon 5DMarkIV. (I'm assuming this is just the embedded JPG that is transferring over from the RAW file)
Now if you shoot JPG, you can transfer the entire jpg file, for example a 8MB jpg.
If you shoot Raw + JPG to separate cards as I do (RAW to CF, JPEG to SD), you need to make sure you select the JPG source if you want to transfer the full resolution JPG to the phone.
If you only shoot RAW, you need to make sure you convert RAW to JPEG in camera FIRST before transferring to your phone, if you want the full sized JPEG.
The big problem for me is that I would love to use all the features of LightroomCC mobile direct from my iPhone. I also would like to work on the RAW file inside LightroomCC mobile because I can do more with it (and then export directly to jpg from my mobile phone for Instagram, etc). If I start working from the RAW file, then I can pick up where I left off on my PC, without starting over. But now I can only work from the JPEG.
Sure you can use a sync cable, sure you can connect to your computer, but that is NOT wireless. Canon really needs to update the app so that it can transfer RAW files over directly.
Alternatively, LightroomCC could update their app to connect directly to the Camera.
I DO want to use the Wifi functions for RAW and don't think we should have to buy a 3rd party app to do it.
I'll probably just suck it up though and pay $30 for the Cascable app and give it a go. Just wish I didn't have to
