RA-4 process for Color Print processing,
Small Tube processing
Processing Steps and Conditions for Small tube Processors
Solution / Step |
Time (min:sec)* | Temperature |
| Prewet (water) | 0:30 | 86 to 96 F - 30 to 36 C |
| Developer | 1:00 | 94 +/- 0.5 F - 34.4 +/- 0.3 C |
| Optional Stop Bath | 0:30 | 86 to 96 F - 30 to 36 C |
| Optional Wash | 0:30 | 86 to 104 F - 30 to 40 C |
| Bleach - Fix | 1:00 | 86 to 96 F - 30 to 36 C |
| Wash | 1:30 | 86 to 104 F - 40 to 40 C |
| Dry | As needed | Not above 205 F - 96 C |
*Each step includes a 5-second drain time
Various developer time/temperature combinations are acceptable; see the table below. If you increase the development time, increase the bleach-fix time by the same amount. Use the developer time/temperature combinations listed below as guidelines for the bleach-fix also.
Developer Time/Temperature Combinations
| Time (min:sec) | Temperature |
| 0:45 | 97 F - 36.1 C |
| 1:00 | 94 F - 34.4 C |
| 1:30 | 88 F - 31.1 C |
| 2:00 | 83 F - 28.3 C |
REMOVING UNWANTED COLOR FROM CHROMOGENIC PAPER
| Unwanted color | Viewing Filter | Filter Adjust |
| Cyan | Red | -Magenta and -Yellow |
| Magenta | Green | +Magenta |
| Yellow | Blue | +Yellow |
| Red | Cyan | +Magenta and +Yellow |
| Green | Magenta | -Magenta |
| Blue | Yellow | -Yellow |