| Model Name | K&F Concept 77mm Variable ND Filter ND2€“ND400 (Blue) |
| Key Features | |
| Type | Variable ND Filter (Blue Series) |
| Filter Size | 77mm |
| ND Range | ND2 to ND400 |
| Effect | Light reduction for long exposure and wide-aperture shooting |
| Material | Optical glass |
| Frame | Blue anodized aluminum |
| Whats in the Box | |
| Filter x1 | |
| Carrying Case x1 | |