Canon EOS 5D Mark IV L-series Zoom Lens Kit Owner's Manual

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Handling Precautions
LCD Panel and LCD Monitor
 
Although the LCD monitor is manufactured with very high precision 
technology with over 99.99% effective pixels, 0.01% or fewer of the pixels 
may be dead, and there may also be spots of black, red, or other colors. 
Dead pixels are not a malfunction. They do not affect the images recorded.
 
If the LCD monitor is left on for a prolonged period, screen burn-in may occur 
where you see remnants of what was displayed. However, this is only 
temporary and will disappear when the camera is left unused for a few days.
 
The LCD monitor display may seem slightly slow in low temperatures, or 
look black in high temperatures. It will return to normal at room temperature.
Cards
To protect the card and its recorded data, note the following:
 
Do not drop, bend, or wet the card. Do not subject it to excessive force, 
physical shock, or vibration.
 
Do not touch the card’s electronic contacts with your fingers or anything 
metallic.
 
Do not affix any stickers, etc., on the card.
 
Do not store or use the card near anything that has a strong magnetic field, 
such as a TV set, speakers, or magnets. Also avoid places prone to having 
static electricity.
 
Do not leave the card in direct sunlight or near a heat source.
 
Store the card in a case.
 
Do not store the card in hot, dusty, or humid locations.
Lens
After detaching the lens from the camera, put down the 
lens with the rear end up and attach the rear lens cap to 
avoid scratching the lens surface and electrical contacts.
Contacts