The 55mm Graduated Mauve from Hoya is similar to Hoya's Half-Color series except that color density gradually decreases near the center of the filter allowing emphasis of foregrounds or backgrounds. The color gradually fades out so the boundary between the colored and transparent sections will not become apparent even with the lens aperture stopped down. The filters are mounted in a rotating frame and are available in seven colors.
The advantage of most Hoya filters is that Hoya puts, at least, one layer of anti-reflective coating on each side of their glass. It is not bare glass. Even if the glass is not multi-coated, this kind of production tends to minimize flare and ghosting.
| Type | Graduated Mauve |
| Size | 55mm |
| Grade | Not Applicable |
| Filter Factor | Not Specified by Manufacturer |
| Multi-Coated | Not Applicable |
| Rotating | Yes |
| Effect | Color density gradually decreases near the center of the filter |
| Application | Nature, outdoor, scenic photography |
| Color Temperature | Not Applicable |
| Construction | Hoya optical glass |
| Front Filter Thread Size | 55mm |
| Front Lens Cap Size | 55mm |