Answer: Dip a lens wipe or cotton swab into distilled water and shake off any excess liquid. Then, wipe the lens using the spiral motion. This should remove all water-soluble dirt.
1. Place the objective lens on a dust-free surface.
2. Gently blow away loose dust that is on the surface of the optical glass with a dust blower, as if any dust left on throughout the cleaning process could scratch the optical glass or coating. Blow the air across the lens surface to avoid damaging it.
3. Next, use a low-lint lens tissue produced especially for cleaning optics, or a cotton swab.
4. Dip a lens wipe or cotton swab into distilled water and shake off any excess liquid. Then, wipe the lens using the spiral motion. This should remove all water-soluble dirt.
5. Breathe on the lens to generate a layer of moisture, being careful not to release any droplets of saliva, before removing any remaining residue with a dry cotton swab.
6. Remove oily dirt using either a lens cleaning fluid or absolute ethanol on a cotton swab or lens tissue. Stubborn contamination may require several passes, or a stronger solvent such as methanol or acetone.
7. Discard the cotton swab or lens tissue after every use.
Answers & Comments
Answer: Dip a lens wipe or cotton swab into distilled water and shake off any excess liquid. Then, wipe the lens using the spiral motion. This should remove all water-soluble dirt.
Explanation:
Explanation:
1. Place the objective lens on a dust-free surface.
2. Gently blow away loose dust that is on the surface of the optical glass with a dust blower, as if any dust left on throughout the cleaning process could scratch the optical glass or coating. Blow the air across the lens surface to avoid damaging it.
3. Next, use a low-lint lens tissue produced especially for cleaning optics, or a cotton swab.
4. Dip a lens wipe or cotton swab into distilled water and shake off any excess liquid. Then, wipe the lens using the spiral motion. This should remove all water-soluble dirt.
5. Breathe on the lens to generate a layer of moisture, being careful not to release any droplets of saliva, before removing any remaining residue with a dry cotton swab.
6. Remove oily dirt using either a lens cleaning fluid or absolute ethanol on a cotton swab or lens tissue. Stubborn contamination may require several passes, or a stronger solvent such as methanol or acetone.
7. Discard the cotton swab or lens tissue after every use.