I have recently started contact printing 8 x 10 negatives. I am quite pleased w ith my initial results except for a subtle but disturbing series of irregular co ncentric rings, which appear in print areas with even tonalities (such as clear skies). These rings are different on each print of the same negative. The nega tive itself looks fine when viewed on a light table. Correspondingly, the glass (in a frame) I am using is very clean. To fill in the details, let me also men tion that I am currently printing on Kodak Polymax II RC paper, glossy surface.
I have a suspicion that I am dealing with "Newton9s Ring9s", which I have read a bout as being a problem with glass negative carriers for large format enlargers. It strikes me that this effect could be coming from the glass-negative interfa ce, or the negative-glossy RC paper interface. Has anyone had this type of prob lem, and/or know of potential solutions? Has anyone had experience with "Anti-N ewton Spray" (Tetenal) to solve this problem? Could the glossy RC paper be the culprit? I was hoping that I could use this paper for the "proofing stage" of m y work, and then switch to fiber-base silver-gelatin paper for my final work.
Thanks in advance for any help or suggestions.