6.If the lens surfaces are clean, yet the view- finder appears dusty, the picture will not be affected by the dust in the viewfinder. If the mirror gets dirty, it will not affect pictures but it may make viewing difficult. Dust it VERY gently with a blower brush. If further cleaning is necessary, NEVER do it yourself but take the camera to the nearest authorized Canon service facility.

7.The film chamber needs cleaning from time to time to remove film dust which may scratch the film. Gently dust it out with a blower brush. Be careful NEVER to press on the shutter curtain.

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8.To clean the lens surfaces, use only a blower brush, cleaning fluid and tissue made specially for cleaning camera lenses. Carefully follow the lens instruction manual. Chamois leather or a silicone cloth may be used for wiping smudges off the lens barrel-NEVER use such cloths on the glass surfaces!

Aerosol spray dust removers are not recom- mended for the shutter curtain area. If used, hold the can at least 20 cm (8 inches) away from the curtain.

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Canon T50 manual