The Kodak 4 x 12" #22 Deep Orange Wratten Gel Filter for Black & White Film darkens blue, violet, green and yellow-green. It particularly useful for all landscape and architectural photography (on black and white film) requiring vivid contours. The sky is distinctly toned with the clouds clearly contrasted against it.
Most Kodak gelatin filters are available in 3 x 3" (75 x 75mm), 4 x 4" (100 x 100mm), 6 x 6" (150 x 150mm), 14 x 18" (350 x 450mm) and 4 x 12" (10.2 x 30.5cm).
| Type | Deep Orange |
| Size | 4 x 12" (10.2 x 30.5cm) |
| Grade | 22 |
| Filter Factor | 6 (+2.5 stops) |
| Multi-Coated | Not Applicable |
| Rotating | Not Applicable |
| Effect | Darkens blue, violet, green and yellow-green |
| Application | Landscape, architectural photography |
| Color Temperature | Not Specified by Manufacturer |
| Construction | Gel |
| Front Filter Thread Size | Not Applicable |
| Front Lens Cap Size | Not Applicable |