The SLR lens is dirty, how to clean it?

Blowing brush: Blowing can blow off the dust on the lens surface, which is an unnecessary cleaning tool in the first step of cleaning the camera. When using, pay attention to that the nozzle forms a certain angle with the lens surface, and do not touch the lens. It is self-evident to the lens that inferior air blows easily and rubber particles will fall off from the inner wall and be ejected by compressed air. High-quality hair dryer, air inlet and air outlet are designed separately, which is safer.

Blowing+lens cloth/lens paper+lens cleaning solution: the lens cloth is used to wipe the fuselage and lens, and the first step is blowing to remove dust, and the lens cleaning solution is used to wipe off oil stains, fingerprints or air-dried stains.

Matters needing attention in using SLR

When using SLR, use UV mirror or hood to protect the lens, especially when shooting in harsh environment. When not in use, please cover the lens or install an ultraviolet filter to protect the SLR lens from damage.

Clean the lens as little as possible: unless absolutely necessary, try not to clean the lens, because it may get dirtier and dirtier, and inexperienced people will scratch the lens. In fact, fingerprints and dust on the lens surface have no effect on the imaging effect.

Don't take too long to clean: Don't take too long to clean and wipe the lens, and don't exceed 30 seconds. Wiping the lens for a long time will cause certain damage to the lens, so it will lose a lot.

The above contents refer to Baidu Encyclopedia-SLR lens.