Two bath development to intensify the colours and to increase the
densities of the shadows after lith development.
is used as a second bath after lith development to increase the colours
and densities of warm tone papers. With a treatment in Lith Ω
it is possible to achieve intensive yellow or reddish tones while
using relatively short times of development in strong lith working
solutions. Such tonalities normally require excessive exposure in
combination with long times of development in highly diluted developer.
Treatment in Lith Ω will evoke intensive colours on warm tone
paper with a silverchloride emulsion (such as Forte Polywarmtone
and Fomatone) – the papers that are already colourful when
used in lith alone.
On bromide silver emulsions and mixed emulsions
with a high content of bromide silver you will observe little change
in terms of colours, only the densities will increase.
the stock solution between 1+100 and 1+500 to prepare the working
solution. Discard the working solution when it turns dark red in
Treat the print for between 30 seconds and a maximum
of 4 minutes. If you are using strong lith developer working solutions
(between 1+5 and 1+8) you can change from the developing bath to
the intensifying bath already before the shadows turn black. In the
second bath the deep shadows will appear almost instantly. The overall
image tone shifts to more colourful nuances. In a developer dilution
of 1+10 or more allow the shadows to turn black already in the lith
developer. The correct time of exposure is reached if the deep shadows
appear after 3 or 4 minutes. Mid tones and highlights will appear
in the second bath.