This Kodak #25 Red Filter is ideal for strong contrast improvement since it absorbs green and blue completely and enhances red. Clouds are dramatically improved almost to the mood of a thunderstorm. It is more effective in cutting through haze, and moonlight effects are easily accomplished. It is also suited for infrared photography.
| Type | Red |
| Size | 4 x 4" (100 x 100mm) |
| Grade | 25 |
| Filter Factor | 8 (+3 stops) |
| Multi-Coated | Not Applicable |
| Rotating | Not Applicable |
| Effect | Absorbs green and blue completely and enhances red |
| Application |
Create dramatic sky effects, emphasizing cloud contrast for landscapes Simulate a moonlit scene at midday with slight underexposure |
| Color Temperature | Not Applicable |
| Construction | Gel |
| Front Filter Thread Size | Not Applicable |
| Front Lens Cap Size | Not Applicable |