Description
- We have 2 types: Normal type and Coated type. They are made of same material ,the difference is the coating.
- Normal type: It is easy to get get oxidation fungus .
- Coated type: We do the AR coating and Protection coating on both sides. The coating can stop the oxidation efficiently,so the filter can be used for longer time.
- Besides,the AR coating can increase the transmission rate and decrease the reflective light. Protection coating can prevent the scractches and corroding.