Canon EOS-1D X Mark III DSLR Camera (Body Only) - Manual (Page 608)

4.
Select an image.
On the camera, press the < > button.
Select an image to transfer, then press < > to transfer the image.
You can add a voice memo to the current image before transfer. For
details, see
Recording Voice Memos .
Movies cannot be transferred this way. Selecting a movie and pressing
<
> will display the movie playback panel.
Specifying sizes or types of images to transfer
You can specify which images to transfer when recording images of different sizes to the
CFexpress cards, or when shooting RAW+JPEG or RAW+HEIF images.
1.
Access the [FTP transfer settings] screen.
Follow steps 1–3 in Automatic transfer after each shot .
2.
Select [Transfer type/size].
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