Heliopan, our highest-quality filter, has now entered the Variable ND market with this excellent offering. It can vary from 1 to 6.6 stops of ND filter by simply rotating the outer ring.
| Brand | Heliopan |
| Filter Format | Screw-On |
| Filter Size | 67 |
| Filter Type | Neutral Density |
| Item Type | Lens Support |
| Lens Support Type | Filter |