The Washi K 100 is a black and white film. It is distributed by Film Washi of France.
The material for the Washi K comes from a 3 km long roll of Kodak Plus-X aerial film, which expired in 2000. Kodak Plux-X is a black and white film made by Kodak and was discontinued in 2011.
The film is characterized by fine grain and moderate contrast. The sensitivity is specified as ISO 100. The film has a spectral sensitivity of 700nm and is cast on polyester. The Aerial Plus X is slightly more sensitive to red than the regular version of black and white film.
The Washi K is only available for large format cameras. It comes in 4x5" and 5x7" sizes. Since the original material was perforated, this is visible on both sides of the image.
Development Times
Times for the development of the Washi K 100
| Developer | Dilution | ISO | Time | Temperature |
|---|---|---|---|---|
| Ultrafin | 1+10 | ISO 100 | 8 min | 20 °C |
| Rodinal | 1+25 | ISO 100 | 6 min | 20 °C |
| D-76 | 1+1 | ISO 100 | 7 min | 20 °C |
| HC-110 B | Stock | ISO 100 | 5 min | 24 °C |
| Ilfosol 3 | 1+9 | ISO 100 | 5 min | 20 °C |
| Ilfotec L29 | 1+19 | ISO 100 | 5:30 min | 20 °C |
| Xtol | 1+1 | ISO 100 | 5 min | 24 °C |
Calculation of the development solution
| Dilution | Developer (ml) | Water (ml) |
|---|---|---|
| 1+10 | 45 | 455 |
| 1+25 | 19 | 481 |
| 1+1 | 250 | 250 |
| Stock | 500 | 0 |
| 1+9 | 50 | 450 |
| 1+19 | 25 | 475 |
