How does a digital camera clean the lens?
Most digital cameras cannot install protective filters or are inconvenient to install. It's easy to accidentally get dust, press a fingerprint or leave something saliva when you are shooting the camera. Although fingerprints, dust, and water marks on the lens surface do not have much effect on imaging. As long as it does not allow strong sunlight to hit the lens, it will cause fog and glare. But how can you, who loves cameras, tolerate the beloved camera lens into a big face? What to do if it is not clean? Rub it!
Today's lenses generally have multiple layers of coating, which can scratch the coating. The lenses rub the flowers, causing irreparable damage to the lens. Am I rubbing or not rubbing it? My experience is that the lens is always rubbing the worse, not the better the better, do not expect to restore the lens to a new look at the factory. So we recommend not to wipe the lens as a last resort.
Get some tools before you start wiping. Conventional weapons include lens water, lens paper (or wet lens paper), lens cloth (or suede), balloon blowing, and cotton wool. OK, here's where to start.
Blow the dust off with a blower, and carefully blow off the individual shots with lens paper. Be careful not to use force. Take a little absorbent cotton, wet with lens water, wet it well, and carefully stick to the dust and stains still on the lens. This process can not be hard, otherwise it is easy to damage the lens. After ensuring that the surface is free of visible dust particles, wipe it in a large area.
Prepare a small number of cotton balls (with wet lens paper also available) in several pieces and press them into cakes. One third of the mirror is appropriate. Prepare a large number of large cotton balls, also pressed into a cake, the size of the mirror two-thirds to three-quarters is appropriate, try not to expose cotton fibers on the work surface. Use a small cotton ball to dip the lens water and dry it well. The center will spiral the mirror surface and don't go back. Then, when the lens water is not dry, wipe the mirror in the same way with a big cotton ball. If one effect is not satisfactory, you can come in once, but the used cotton ball should not be used again. Be careful not to let the lens water directly contact the lens surface, be sure to use lens paper, otherwise it may damage the lens coating or lens water infiltrated into the lens along the lens edge, causing the lens to fog, and even degumming.
What if there is no lens water? It does not matter, you can use the gas toward the lens surface instead. However, it must be noted: Do not cover your mouth when you are angry, you should open your mouth, gently gas, so as not to spit. We just have a mist on the lens surface. If the lens is made of plastic lenses, it is best not to use lens water, nor use a mixture of alcohol and ether to clean the lens. Must wipe or use the gas approach.
However, I feel that no matter how carefully you wipe it, there will always be damage to the mirror coating, so do not wipe the lens until absolutely necessary. The camera is used, not to see it.
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