Canon 650D - Manual (Page 322)

Troubleshooting Guide
322
If a card error message is displayed, see page 32 or 331.
Set the lens focus mode switch to <AF> (p.39).
To prevent camera shake, press the shutter button gently (p.42, 43).
If the lens has an Image Stabilizer, set the IS switch to <1>.
In low light, the shutter speed may become slow. Use a faster shutter
speed (p.108), set a higher ISO speed (p.90), use flash (p.104), or use
a tripod.
Set the AF operation to One-Shot AF. Focus lock is not possible in the
AI Servo AF and AI Focus AF operations (p.95).
Depending on the lens type, shutter speed, aperture, subject
conditions, brightness, etc., the continuous shooting speed may
become slower.
The card cannot be used.
The image is out of focus.
I cannot lock the focus and recompose the shot.
The continuous shooting speed is slow.
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