Advanced: Frame: ultra-thin frame Frame thickness: 1.49 mm Frame height: 4.43 mm Lens material: optical Glass frame material: aviation aluminum lens Compression spring: type of pressure seam 4 points: crosshair 6 points: Snowflake 8 points: the word subway Package Included: 1x 52mm 4-point star filter 1x 52mm 6 point star filter 1x 52mm 8-point star filter Cleaning tips: 1. Please do not clean the dust or other impurities in the fully dry lens because the powder contains high hardness of sand, the surface of the coating can be scratched, is the right choice for blowing the first dust mirror, and then clean again with a soft brush Clean and finally use the superfiber lens of the cleaning cloth. 2, please do not wipe with a paper towel, static electricity will keep a lot of paper fibers on the surface of the lens, do not use the lens high-quality water to clean the lens, chemical corrosion of the lining damage the filter surface.
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