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> Anyone........? |
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#41
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http://www.deadbread.com/crumbs/vac.html nn |
#42
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Thanks NN.
I am sure a pump could pull enough air out of a box with small holes in the top to pull a sheet of printing paper down flat. The question is would enough air be pulled through the printing paper to create enough of a vacuum to pull the negative down flat? I shall experiment and report back. Alan |
#43
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Where does one get chemicals for Pt/Pd printing? Silverprint do not stock them unless I have missed them. I expect them to eye-wateringly expensive but to what extent?
Les |
#44
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The extent of your eye-watering depends... Take a look at their prices and then factor in shipping, customs duty and VAT...
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Visit me at www.ianleake.com |
#45
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Actually the cost of Pt/Pd depends on many more factors than just the cost of the metals and related chemistry. Developers are very cost-effective because they don't get exhausted in the same way that silver gelatin developers do. But the paper you use may be quite costly. You should also factor in the cost of wastage (e.g. test prints or when you mess up the coating). Wastage is probably the most underestimated cost of all.
I use a rule of thumb that a small print costs about £5 in materials. This number has varied significantly over the years... Nowadays I probably average 1-2 test prints before I find the right combination of Pt/Pd/developer, but thankfully I rarely mess up my coating. All the economics change when you're making large prints - above 10x8 say.
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#46
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These people have the best prices I have found and they do not overcharge for postage. |
#47
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But when starting out, most people prefer to buy pre-mixed chemistry kits rather than powders. While this means your shipping prices are higher, it also means that you don't need so many precautions when mixing chemistry (you really don't want to inhale some of these chemicals).
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#48
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Andrew Sanderson. www.andrewsanderson.com www.thewebdarkroom.com |
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