China Photography Effect Prism, Find details about China Filter, Photography from Photography Effect Prism
Diameter: | 74mm, inner diameter 71mm |
Facets: | multiple, 37 fecets |
Tolerance: | Diameter and thickness tolerance: +/-0.1mm |
Surface: | 80/50 |
Coating: | AR coating, R≤2% |
Material: | BaK7, H-K9L Glass. |