Cleaning the lens of a Canon camera will make a significant difference in the optical performance of this product. It is crucial that one do this step properly, since any wrong steps will critically damage the lens and scratch it permanently--and replacing the lens will also be a costly investment. Use a professional lens cleaning kit for best results.
Instructions
1. Purchase a professional Canon lens cleaning kit from the authorized dealer where you originally bought the camera from, or from another canon dealer found on the website under additional resources. Ensure that this kit is for your specific Canon camera make and model; it should contain, at the minimum, a blower brush, lens cloths and cleansing solution.
2. Remove any lens filters.
3. Hold the blower brush at an angle, just slightly a centimeter above the lens. Use the blower brush to carefully remove any dust and dirt from the lens surface.
4. Angle a flashlight across the lens to make sure that all dust is gone.
5. Repeat the above two steps until all dust and microfine particles are gone; this is necessary to prevent scratching of the lens when cleaning.
6. Place a drop of cleansing solution on a clean piece of lens tissue (never apply the cleansing solution directly on the lens). Using this tissue, wipe the lens surface in a circular motion from the edges towards the center with a dusting rather than rubbing motion.
7. Check to see that there are no streak marks on the lens by angling a flashlight on the lens; if necessary, repeat the above step to remove these.
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