Shooting-related problems – Canon EOS 90D DSLR Camera with 18-135mm Lens User Manual
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Troubleshooting Guide
Shooting-Related Problems
The lens cannot be attached.
The camera cannot be used with RF or EF-M lenses (
The viewfi nder is dark.
Install a recharged battery in the camera (
No images can be shot or recorded.
Make sure the card is properly inserted (
Slide the card’s write-protect switch to the Write/Erase setting (
If the card is full, replace the card or delete unnecessary images to make
You cannot take a picture when focusing with One-Shot AF and the focus
indicator <
o
> in the viewfi nder is blinking or when the AF point is orange
during Live View/movie shooting. Press the shutter button halfway again
to refocus automatically, or focus manually (
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