PUSH-DEVELOPMENT AT 38 °C / 100 °F
Colour processing time for each screen step is to be extended by 30 seconds at
38 °C / 100 °F.
GENER AL IN ST RU CT IO NS
PROCESSING
Stop bath (TETENAL Indicet 1+19 or 3% acetic acid: 20 s) increases processing
reliability when the bleach fix bath is re-used several times.
If the user processes predominantly high-speed films (ISO 400/27° and faster), it is
recommended that only three development runs (per litre of colour developer) be
done.
If development is uneven (sheet films), it is recommended that the rotation speed be
increased and/or the film be pre-washed for two minutes at process temperature.
It is important to set the drying temperature so that the film emerges flat from the
drying cabinet. If the emulsion side is buckled, then the drying temperature is too
high. If the reverse side is buckled, then the temperature is too low. The drying tem-
perature needs to be adjusted to take account of prevailing conditions, with due
regard to relative humidity (seasonal variations).
The times given in the tables include times of approx. 10 sec for pouring out the bath
concerned. The times given for bleach fixing and final rinsing are minimum times and
may be exceeded by up to 50%.
DEVIATIONS IN RESULTS
Results
Insufficient colour den-
sity
Insufficient colour den-
sity and insufficient con-
trast, minimum density
(mask) too bright
Colour of mask brownish Bleach-fixing time too short
6
Possible causes
Under-exposure of film
Under-development
Development time too short
and/or temperature too low
Application too thin
Measure
Check camera
Increase colour develop ment time
(by 15-30 s). Keep to processing
conditions
Bleach-fix film again and rinse
Correct application, bleach-fix film
again