The 5D III doesn't have WiFi. The 5D IV does.
For Canon cameras that DO support WiFi, it's important to know that only ONE interface type can be active at a time.
This means if you enable WiFi on the 5D IV, then the side-effect is that you have disabled the USB interface (you wont be able to transfer images via the cable.)
You can either (a) use the "Canon Connect" app (available free from the iOS "App Store") and transfer the images via WiFi -or- (b) you can disable the WiFi (which re-enables the USB interface) and use the cable to transfer the images.
Keep in mind that iOS doesn't understand how to decode RAW files (RAW files do contain an embedded thumbnail which is a small JPEG version of the image ... and it might display that depending on which software you use, but wont be able to open a .CR2 (RAW) file.)
If you shot in RAW, there is a menu on the camera to convert your RAW images to JPEG images (typically I shoot and save RAW to just one memory card. When I have the camera do the conversion, I tell it to use the second card as the target. That way all the RAW images are on one card, and all the JPEG are on the other.)
If you use that option, you'll have to select answers to questions for things that aren't applied to RAW files (things like white balance, picture style, etc.)
my wifi is switched off but still cannot download the files from the camera direct into thr iPad. This only works when I remove one of the cards first. This strange behavior is not taken place when I use the 5D Mark iii
Any other suggestions welcome
Are you sure you're trying to download from the right card? I'll venture a guess that you can only download from the card the camera is set to use. If you remove a card, that action automatically sets the camera to use the other, thus removing any ambiguity.
That is the same behavior as the 1D X. Seems to be normal behavior for the newer models.
that doesnt fix the problem for me
regardless having one or two cards inside (and also which one)
the Gallery App starts on
- iPad Pro 2018 12,9 inch (3rd gen) iOS 12.1.3 (and before) on connecting the
- Canon 5D Mark IV Firmware 1.1.2
but the import button / screen does not show up on the ipad
(wireless is off)
(i am using 2 different original apple USB-C to USB connectors which are working with my other cameras but not with the 5D)