1). Hand wash, blow dry or leave to dry.

2). Put on finger cots.

3). Gently take out the lens for inspection.

4). Blow off the dust on the surface of the lens with an air balloon or nitrogen.

5). Use a cotton ball dipped in the mirror liquid to stick away the residue.

6). Gently wipe the lens with a proper amount of lens cleaning liquid on the lens cleaning paper, and do not wipe it in a rotating manner.

7). Replace the lens wiping paper, and then repeat the previous step, do not reuse the same piece of lens wiping paper.

8). Blow the mirror surface clean with an air balloon.