AGFA Alliance CNP?

Hi, all -

Found some AGFA Alliance CNP in 10x12, but I'm not sure what exactly this stuff is. This PDF from AGFA says it's orthochromatic, "Negative-working camera paper". Huh? Is that like ortho printing paper for in-camera shooting? I've never heard the term before.

Help?
Scott

Hi Scott,
Looks like you have a box of diffusion transfer material. It was exposed in a graphic arts camera and fed through a processor which after entry into an activator solution was laminated to a receptor sheet (either paper or film), the two sheets exiting the processor between two rollers which brought them into close contact. The image transfered to the receptor sheet and they were peeled apart after about 30 seconds. There were many different materials available. The variety was high contrast, continuous tone, panchromatic and even colour. Some activator solutions would give you a sepia print. Extremely common until around 2000.

Well, that's disappointing, but good to know, Richard. Thanks much for the good info. Thankfully, I didn't buy any!

Yes Richard bliorg is exactly correct. They had CPN, CPRV, CPTN and several others. What you have (CPN) is the exposing half. You would expose that in a process camera and then sandwich it together with (CPP) or (CPF) to make an almost exact copy of the original for pasting up graphic arts mechanicals. CPTN was actually a continuous tone material although it certainly wasn't of the highest quality. I have a CPT processor still here, it hasn't been used in 10 years but it's still here!