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1. |
Use a small air bulb to gently blow off dust and debris. Do not use compressed air from a compressor, as it is not a "clean" source of air and can contaminate the surface. |
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2. |
Gently place the provided optical grade rice paper on the optic element. Slightly wet the paper with drops of Ethanol/ Diethyl ether, using a pipette, and gently pull the paper toward the dry side away from the element, until there is no contact between them. |
If this method is not successful, proceed to Method B. |
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Method B: |
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A. Condition of lens: Fingerprints, oil, other visual contaminants |
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B. Cleaning method: |
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1. |
Use a new clean class 1,000 foam swab. |
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2. |
Dampen the foam swab with Ethanol/ Diethyl ether. The foam swab must not be dry. |
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3. |
Slowly and gently wipe the element in a regular pattern. Do not scrub the surface (scrubbing might damage the coating or the element itself). Gently wipe element in "S" motion. If the surface is left with wipe marks, wipe it at a slower rate. When finished, no streaks should be visible. |
If this method is not successful, proceed to Method C |
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Method C: |
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A. Condition of lens: Moderate contamination (spittle, oils) |
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B. Cleaning method: |
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1. |
Use a new clean class 1,000 foam swab. |
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2. |
Dampen the foam swab with Ethanol (or Acetone). The foam swab must not be dry. |
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3. |
Slowly and gently wipe the element in a regular pattern. Do not scrub the surface (scrubbing might damage the coating or the element itself). Gently wipe element in "S" motion. |
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4. |
If the surface is left with wipe marks, wipe it at a slower rate When finished, no streaks should be visible |
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5. |
Slightly wet the provided optical grade rice paper with drops of Ethanol/ Diethyl ether, using a pipette, and gently pull the paper toward the dry side away from the element, until there is no contact between them, and the residue of acetic acid has been removed |