Canon EOS 90D DSLR Camera with 18-135mm Lens - Manual (Page 611)

611
Troubleshooting Guide
My card reader does not recognize the card.

Depending on the card reader used and the computer’s operating system,
SDXC cards may not be correctly recognized. In this case, either connect
the camera to a computer with an interface cable (sold separately) and
use EOS Utility (EOS software, = 590) or connect the camera to a
computer via Wi-Fi ( = 426) to import the images on the camera.
The image cannot be resized.

With this camera, you cannot resize JPEG
b
and RAW images
( = 379).
The image cannot be cropped.
 With this camera, you cannot crop RAW images ( = 377).
Dots of light appear on the image.
 White, red, or blue dots of light may appear in captured images if the
sensor is aff ected by cosmic rays or similar factors. Their appearance
may be reduced by performing [Clean now
f
] under [
5
: Sensor
cleaning] ( = 528).