The Lee 4x4" Neutral Density (ND) 0.9 Glass Filter enables the shooter to adjust exposure without affecting color balance. Neutral density filters are available in 1, 2, 3, or 4 stops to suit individual situations.
Neutral Density filters have several uses and offer the possibility to achieve otherwise unachievable results. ND filters appear grey and reduce the amount of light reaching the film. They have no effect on color balance.
| Type | Neutral Density |
| Size | 4 x 4" (100 x 100 x 2mm) |
| Grade | 0.9 (3-stop) |
| Filter Factor | Reduces ISO 1/8 |
| Multi-Coated | No |
| Rotating | No |
| Effect | Reduce the amount of light reaching the film |
| Application | To use high-speed film in bright sun |
| Color Temperature | Not Specified by Manufacturer |
| Construction | Glass |
| Front Filter Thread Size | Not Applicable |
| Front Lens Cap Size | Not Applicable |