All optical components are precision instruments, especially optical filters, which are easily scratched on the surface.Improper cleaning and storage methods may damage the filter surface facial mask layer, reduce its application performance and shorten its service life.Therefore, the correct maintenance method is extremely important.

Small details to pay attention to during the use of optical glass filters:

1、During normal use, care should be taken when retrieving and placing the filter, while also paying attention to the external environment to avoid scratching the filter with clothing zippers, buttons, etc., or placing the filter in a dirty or dusty environment.

2、When touching the filter, wear finger cots to avoid salt and acidic substances from corroding the surface of the substrate.

3、When taking out the filter, hold the edge of the filter with your hand, and even with a finger cots, do not touch the transparent surface of the filter.

4、The filter should be placed on a soft and clean object, not on glass, metal, a table, or unclean paper.

5、When storing, it should be wrapped in clean capacitor paper or specialized lens cleaning paper. The best storage temperature is around 23 ℃, and the humidity should not exceed 40%. It's better to store it in a dry storage cabinet.

6、When stains are found on the surface, they should be cleaned immediately. Because dust can easily scratch the surface, and if the acidic substances accidentally left by fingers stay for too long, they can easily react chemically with the surface coating material, becoming permanent laser lens stains.

7、If there are stains or fingerprints on the surface, they can be wiped with anhydrous ethanol or similar functional solvents.The specific method is as follows: put dust-free finger cots on your fingers, soak a towel in anhydrous ethanol, drag the edge of the soaked ethanol towel, and move it in a single direction on the surface of the filter.Try to apply as little force as possible during the wiping process, as excessive pressure may damage the surface of the filter.The purpose of using solvents is to dissolve the viscous attachments on the surface residue of the filter. However, it is worth noting that any cleaning may lower the surface grade at the microscopic level.

8、Do not stack all the filters together to avoid wear and tear.