The mirror inside your Canon SLR allows you to see precisely what will be in your photograph. The mirror "reflects the image of the subject formed by the lens so that it's facing the top of the camera." The image is then projected up to the focusing screen for viewing and focusing. While a dirty mirror won't directly affect your photographs, it can be annoying to see in your viewfinder.
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Things you need
- Handheld blower
Go to a dust free room to prevent more dust and debris from entering your camera.
Remove the lens from your camera. Place the lens caps on your lens to prevent dust and damage.
Holding the handheld blower between your forefinger and thumb, angle the blower toward the mirror. Be careful not to touch the mirror with the edge of the blower.
Squeeze your fingers together in a quick motion to force air through the tip of the blower, puffing any dust or debris off the mirror.
Tips and warnings
- If your Canon SLR mirror is dirty with more than just dust or blowing the dust away with a handheld blower does not work, take it to a professional camera store to be cleaned. It's better to pay the cost of cleaning than the repairs you may cause in attempting to do it yourself.
- Do not touch the mirror with a cloth or pad, because it can be easily smudged or damaged.
- Do not use canned air to blow dust off your mirror, because you could accidentally blow moisture into your camera, potentially damaging the mirror, focusing screen, or sensor.
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