Cleaning method
1. Brush: Some people say it can be used, some people say it can’t. The reason is that the brush itself is easy to absorb dust. Even if it is kept well, it can not avoid the dust that was brushed off the lens last time, and it is easy to damage the lens. Those who use a brush only use the brush to gently pick up the dust on the lens, not a lot of real brushes. It's best to blow it off with a balloon after picking it.
2. Fold the lens paper into a roll, and then tear it from the middle to use a fluffy section. This method is more suitable for removing lighter stains. If you want to wipe it clean, you have to spread the lens paper and wipe it in a single layer. Dry wiping is the easiest way to ruin the lens; some people like haha and think this degree of moisture is the most appropriate. However, some people say that the acidic components in saliva will have a destructive effect on the coating. Before wiping the lens with the lens paper, be sure to clean the entire handle with soap. Be sure not to leave oil stains, especially the natural oil secreted by the human body.
3. Nikon's lens manual (D90): These glass parts are easily damaged. You can use a blower to remove dust or scum. If you use aerosol, you must keep the tank vertical to prevent the liquid from flowing out. To remove fingerprints and other stains, you can wipe it carefully with a soft cloth with a little lens cleaner. Do not use alcohol, thinner or other volatile chemicals.
We tore the lens paper off a page, then fold it in half and then fold it in half (regardless of the specifics), then roll it into a tube, and pull it into two sections. The two fractures are what we want Used part. The port is very hairy, because the lens paper fiber is soft and long, and it will be stretched after tearing, instead of being torn apart like ordinary paper, and these fibers are also important tools we need to use.
We rotate the cylindrical hair end from the center of the lens outwards, and gently sweep it to remove the impurities on the lens. After the cleaning, you can blow it off to blow off the fibers left on the lens that were interrupted during the cleaning process, and the lens is cleaned.