RE: Ware/Malde-Ziatype-DOP palladium,was RE: "New" Paper for Pt/Pd (and other iron processes, too)
Carmen, > Actually, humidity can be a huge factor in Ziatype. I learned this the hard way early on when I was printing a ziatype of a long 7x17 inch negative. I made the mistake of opening up the same side of the split back printing frame each time I checked the exposure, which inadvertently allowed one half of the print to dry out a little more while the unchecked side sat nice and cozy and humid between the glass and the back of the frame. This gave a whole new meaning to the term 'split tone', because I ended up with a print which had a left side that was cool purplish black and the right side a warm toasty brown. I'm sure someone will immediately sieze on this observation to create a way of controlling this effect so that different parts of a print can be different tones. > Clay's real life story makes an excellent point. Printing ziatype by inspection is not the best way to print due to humidity changes. Printing by time and using sheets of mylar to sandwich the paper and negative will control the humidity of the print very effectively. Don Bryant
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