Hello! I need help with a very rare and unusual question. I need a way to uploading an image TO the camera (Yes, TO the camera, NOT from it) without retrieving SD card. I already tried to Canon Camera Remote app on my phone, but sadly you can only download images from camera. Are there any ways to solve my problems? Is it poissible to upload image using USB cable and PC/Phone? Plus I found a very interesing pioint in my camera settings: Image sharing between cameras.Does anybody know how it works? Please help!!! Camera: Canon EOS 80D. Supports Wi-Fi and Bluetooth connection
Regarding sending from computer to the camera I do not know of any designed method to do this, in fact the whole process is by design to be a workflow in one direction. The only thing i could think of is placing it on the card and inserting it in camera and hoping that works. But I highly recommend re-formatting after pulling the card out of camera as digital camera operating systems can be quite finicky and we have see issue over the years with the ability to read cards. I also have no idea what the use case for putting images onto the camera would be. But yes it does seem you can share images between cameras: https://gdlp01.c-wss.com/gds/9/0300022459/01/eos80d-wf-im-en.pdf
To get an image back on the camera, use the USB cable or card reader and treat it as a normal drive. I just did it and it works a treat. No issues. I have Windows 10 Pro and a Canon 7Dii and use a CF card and SD card. All works fine, I viewed the images in-camera - works perfect for JPG and CR2