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 Checking your lens for dust and smudges Alerter l'administrateur Recommander à un ami Lien de l'article 

 Checking your lens for dust and smudges is something you should do on a regular basis, not only to ensure you’re getting the sharpest possible pictures, but also because a fingerprint or alien smudge left to ripen can cause permanent damage to the lens coatings. Keeping your lenses clean isn’t rocket science, but nonetheless, is a chore that should be performed carefully, thoughtfully and with the proper tools and techniques.Dust and smudges on the front element of your lens (or your filter) are the easiest to spot because they’re front and center.
While dust and smudges on the front element can diminish sharpness and contrast levels, you lose greater levels of sharpness and contrast when you have dust or smudges on the rear lens element because that’s the one that ultimately projects your image onto the camera’s sensor (or film). If your projector lens isn’t clean, your pictures won’t be sharp as they can be.The Proper Tools for Cleaning Lenses and FiltersAir blowerCamel-hair brushLens tissue or micro-fiber clothAnti fog lens cleanerAlcohol or lens-cleaning fluid should never be applied directly onto the lens surface. Doing so can possibly harm the lens coatings and/or compromise the adhesives that hold the lens elements in place. Drop a little lens cleaning fluid on the swab paper (be careful not to drop directly onto the lens), repeating wipe the lens with special tissue paper, and then wipe the lens with a clean cotton cloth until the lens is dry up.
There is a coating film on the lens surface. If you use the lens cleaning fluids often, the film will be washed away and affect optical imaging effect. Be careful not to drop the lens cleaner directly onto the lens.Tips for Cleaning Lens (provided by cleaner manufacturer):1. Do not wipe the lens oftenSome people like to wipe lens often even there is just a fingerprint. However, the lens is always worse after times of wipes. Actually the fingerprint, dust, or water stains on the surface of lens is not big problem, just prevent the sunlight on the lens. The lens coating would be black and have scratches.2. Every time cleaning should be less than 30 secondsWe suggest that every time cleaning should be less than 30 seconds because long time wiping could cause unnecessary damage.3.
Use UV filter or lens hoodAfter using camera, remember to put on lens cover or install UV filter and put camera into bags. During shooting pay attention that do not leave fingerprint on lens.www.eloncleaners.com is committed to using renewable natural resources to develop products that are totally safe for the environment and the human body. Without containing any petro-chemical, VOC or CFC chemicals, the ELON brand BioCleaner developed by MEIKE is completely safe and green while still maintaining its ultra-effective performance. This article is come from:http://www.spa-tub.com/index.php/how-to-clean-your-lens-properly.htm

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