Kodak 3 x 3" #87 Opaque Infrared Wratten Gel Filter - This filter is for black and white infrared film when you only want to transmit the infrared spectrum and none of the visible spectrum. Filter factor is determined by the film sensitivity.
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), and 14 x 18" (350 x 450mm).
| Type | Wratten |
| Size | 3 x 3" (75 x 75mm) |
| Grade | 87 |
| Filter Factor | 8 (+3 stops) |
| Multirrevestido | Não se Aplica |
| Giratório | Não se Aplica |
| Effect | Transmits the infrared spectrum only and no visible light |
| Application | Infrared photography |
| Temperatura de Cor | Não especificado pelo fabricante |
| Construction | Gel |
| Tamanho da Rosca do Filtro Frontal | Não se Aplica |
| Tamanho da Tampa da Lente Frontal | Não se Aplica |