Athabasca CF-Protector (Gold Super) Circular Filter:
Specifications:
1. Ultra-thin frame (3.17mm)
2. Multicoated, double side, anti reflective film
3. Water and stain proof, anti scratching
4. Gold linen frame
5. Schott B270 Optical Glass
6. EU approved environmentally anodic oxidized
7. Environmental protection certified