Canon PowerShot SD20 Guida Utente

Never place the camera in close proximity to electric motors or other 
equipment generating strong electromagnetic fields. Exposure to strong 
magnetic fields may cause malfunctions or corrupt image data.

Moving the equipment rapidly between hot and cold temperatures may 
cause condensation (water droplets) to form on its external and internal 
surfaces. You can avoid this by placing the equipment in an airtight, 
resealable plastic bag and letting it adjust to temperature changes slowly 
before removing it from the bag.

Stop using the camera immediately if you detect condensation. Continued 
use may damage the equipment. Remove the SD card and battery pack from 
the camera and wait until the moisture evaporates completely before 
resuming use.

When not using the camera for extended periods of time, remove the 
battery pack from the camera or battery charger and store the equipment in 
a safe place. Storing the camera for extended periods with a battery pack 
installed will run down the battery pack. However the date, time and other 
camera settings may reset to default settings if the battery pack has been 
removed for more than three weeks.