Re: Bleaching for a lith effect.

["Tim Rudman" <tim.rudman@xxxxxxxxxx>]

> I'm not sure why you guys are going through all of these gyrations of
> bleaching with feri on Ilford warm tone paper. Very similar results can be
> acheived by toning in selinium of various dilutions. Nix the bleach and
give
> it a try. Maybe I'm missing something because of the limitations of the
> computer image but I just don't thing your are gaining anything with the
> bleach. Also try some semi-mat Ilford warm tone. It will give different
> colors.
>
> Don Bryant
________

Oh dear, I guess I have to take some of the responsibility for this!

Actually there are quite a few good reasons for using bleach and redev
techniques, but only as and when you need those results - like everything of
course.

I first got side tracked into this fascinating area back in the days of
early Multigrade 111. I had used it as many do for simple intensifation of a
print with a dichromate bleach, and got the enhanced depth of black I wanted
and the colour shift from MG111's olivy neutral to a rich cold blue/black.
No surprises there. I then decided to see if I could enhance the Dmax even
further in selenium and found to my surprise that the print toned
beautifully to a selenium brown. Not only that but it 'split' along the way
to a gorgeous warm brown/cold grey split - something that MG111 would never
do. I discussed this with Ilford who were as surprised as I was.

This led on to a lot of work over the years into this fruitful area - which
just seems to go on & on, & there is a lot more for people to do in it.

I got further involved in it with lith printing and found that it could be
used not only to change the way papers respond to toners, but could make
'unlithable' papers lith print too.

It can also do other things. I'm working with more stuff at present, but
amongst the virtues of the process are: to reclaim a print poorly processed
first time round (which of course applies to noone here!), to reclaim after
faults appear in (some) toners - and then go round again, to change the Dmax
or contrast or colour or other properties of the print - grain etc. To make
papers respond to toners they won't respond to, or change the way they do.
To make papers lith print. To change the properties of a manufactures
mixture of emulsion halides &/or developer to what you want by altering the
halides via bleaching. and no doubt other stuff too.
It is very controllable when you start to add water bathing &/or 2 bath
development etc.

I would be very interested to hear of other successes and uses people are
having, thru' the group.

Tim

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