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Showing posts with label lith. Show all posts
Showing posts with label lith. Show all posts

Monday 10 March 2014

A mistake comes good

Developed normally
In a recent chat I had with another photographer, there was a lamenting the fact that he had not noticed a problem with his new pinhole camera; well not the camera but a bit of kit he was using with it. He is not the only one not to notice the little tell tail signs that things are not going well. I had the same sort of thing with the lith 200 process I was trying out for the first time. It was not until I started to use different makes of paper that the fault struck me. Up to that point I thought it was part of the process. It turned out that the box of Kentmere paper had been light contaminated (fogged),but when I could not remember.  At this realization two things crossed my mind, what a waste of a box of paper and dam! it is not a peculiarity of the process.

lith 200 Kentmere paper
I changed to a different paper and continued to produce prints. Using the
negatives I had selected for the trial with the lith 200. While I was doing this I had the idea that maybe the fogged paper could be used to creative affect. I chose some of the negs that may lend themselves to this and processed them accordingly. As the first result appeared in the developer, I started to question this creative wisdom as it looked rubbish, but then my perception changed when the photograph of the bottles on the window sill appeared. It did not look out of place, in fact it added to it a sort of early twentieth century feel. Maybe my idea wasn't such a bad one after all!.


lith 200 Forma paper
What I'm getting at is just because it has gone wrong there is no need to throw the baby out with the water so to speak! With a little lateral thinking creatively you can turn things round. Some of you may think I'm talking a load of rubbish ( I'm being polite) but it is surprising how often a mistake can come good.
lith 200 Kentmere paper




Monday 10 February 2014

Easy Lith 200 Results.

This is my follow on post explaining what happened and how it was done. Not everything went according to plan, but more about that later.

Being in a fortunate position of owning a second slot processor I decided to set this at 26 degrees for the lith developer. I did not add stop or fix to the other slots but continued to use what was already available in the other slotty, keeping the temperature to 20 degrees. It is just as well I did as one of the papers emulsion became very soft.

I chose high contrast negatives that I had already printed. I looked back through my notes on how long each was exposed for and added one and half times more exposure to see how things worked. I chose to follow the instructions when it came to diluting part A and B at 2X 1+25+1000 mls water. (20 mls of each 40 mls in total in 1000 mls of water). The paper I chose to start with was Kentmere RC because it was the paper originally used with these negatives. All the prints were exposed to white light, no grades were set. I had no idea how they would turn out or what sort of tone would be produced. I used two other varitone RC papers to see which produced the best results with this mix of A and B.

Kentmere paper
This is the original Kentmere print exposed at grade zero and developed as normal.

Kentmere paper
This is the first print out of the easy lith on Kentmere paper. It took over three minutes for it to reach full development. A very faint out line of the picture started to show about 30-40 seconds in. It was difficult to see whether the print had toned or not with the red light on.

Foma 131 paper
Second print was on Foma 131 varitone. This took a full twelve minutes to develop fully and is what I had in mind as a lith look.

Ilford paper
Third print was on Ilford multigrade paper, I pulled the paper early because I thought it may go completely black.

Conclusions:

Not knowing what to expect from this process makes it difficult to be to critical with the results. One of my main mistakes was to treat this like a normal developer, I should have mixed the two parts separately so I could vary the strengths of each part to get a look that was in my opinion more lith like, this may have lead me to make changes to the amount of over exposure as well. The problem I think in these early stages of getting to grips with a new process such as this is there are a lot of variables to take into account. With more practice I suspect I will arrive at something more my taste.

A side affect of using the Lith process has shown up a weakness in what I considered a well vented darkroom. This is the first time I experienced a build up of fumes. Some updating needs to be carried out if I wish to continue printing using lith chemicals. After a bit of thought I feel it should be upgraded regardless!

Over all I am pleased with the outcome, for a first attempt. Others may not, but I would prefer to get as many of the mistakes out of the way now so I can concentrate on producing finer prints in the future.

Link back to first post easy lith 200

Friday 31 January 2014

Easy lith 200 try out.

Easy lith 200
For the best part of a year I have been looking at a couple of bottles of Moesch easy Lith 200. It is there by mistake, having turned up in an order I placed and could not be bothered to send it back. After looking at the instructions again I decided to give it a go. How difficult could it be, after all it does say easy lith!? It is time to put 'easy' to the test.

What the instructions say:

The lith developer comes in two bottles marked A and B. the former has Hydrochinon and the latter Potassium Carbonate.

A and B can be diluted from 1+15 to 1+50 or any combination of the two. For example 1+25 = 40 ml of developer to 1000 ml of water. (20 ml A +20 ml B +1000 ml of water)

You should over expose your prints by 1 to 4 stops. The amount of over exposure and the strength of the developer influences the interaction between the two, e.g. with a small over exposure you should use a stronger developer of say 1 to 15 dilution, with a larger over exposure you should use a weaker developer of say 1 to 50 dilution.

Reaction when you add part A and B together
The image printed is dependent on the paper and exposure used i.e. lots of light plus weaker developer equals longer development time and greater colour.

If you are using variable contrast papers (VC) you should use white light as contrast is controlled by a combination of exposure and development time.

Short exposure equals higher contrast, underdeveloped middle tones and minimal colour.
Long exposure equals softer and colourful high lights.

It does not matter what combination of exposure or dilution you use it can take between four to twelve minutes for the image to appear whether RC or FB paper is being used. When in the developer it is recommended that the print is agitated continuously and that the emulsion side should not come into contact with the surface of the tray as it will damage it.

The water added in this case was at 26 degrees.
as you can see the milkiness disappears
The development time will extend from print to print as oxidation and bi products build up this can be compensated for by adding fresh developer to regenerate the working solution.

You can vary the relationship between part A and B. Different affects will be achieved by doing this. More part A equals more colour and harder prints but runs out of steam more quickly. More part B equals a softer print that appears more quickly relatively speaking and will produce more prints before it is exhausted.

It is suggested that by increasing the temperature of the developer to around 26 to 28 degrees centigrade it will reduce development times by 30 to 40% but by doing this it will soften the gelatin making it easier to damage.

The instructions above are not verbatim as they are translated from German but contain all the most important bits.

Some thing’s to think about before you start:

Oxidized lith developer after 24 hours
I would suggest where possible that if you are going to use the developer at the increased temperature of 26 degrees +, that it is done separately to the stop and fix which would normally be used at 20 degrees. This is really aimed at those of us who mainly use a slot processor for printing. By doing this you decrease the amount of fumes given off making the air more breathable. It also allows you to cool down the paper when it is moved to the stop therefore hardening the gelatin layer decreasing it's susceptibility to damage as you move it from bath to bath.

Collapsible bottle.
I added part A and B together when I mixed it up for the first time which I think was a mistake, it would be a better idea to dilute A and B separately as one exhausts more quickly than the other. The instructions do not state either way as to mixing the pair together.

It also states that the developer oxidizes quickly when used in a tray and that you should only mix enough for the session and when finished throw it all away. I found that if you pour the unused developer into collapsible bottles it will stay fresh for at least 48 hours. A slot processor slows the oxidation down but not to the extent that it will keep over night.


Because this post is getting a bit long my results will be posted separately. 

Results link