I don't know what the thinnest RC paper is, but Foma's Fomaspeed Variant is on a thinner base than Ilford's.
Slavich makes the only single weight paper I could find, but it's FB. Beautiful stuff though!
Marc!
paper negatives
Hi, that could be helpful. I will see if I can locate some. Thanks!!
B&H and Adromdra (SP) both seem to carry Slavich, I ordered from B&H took 3 weeks.
Why?
paper negatives
Oh.
Here is an idea ... use film.
When I was doing paper negatives ( a long time ago), I preferred single weight fiber paper. I would often use pencil, on the reverse side of the paper, to add to the highlight areas, before contact printing a positive. I don't know if you use this technique, but it's harder to do on RC paper.
I've shot paper negatives for decades, and have contacted printed paper negatives made on Arista grade 2 RC paper. I see no issues with the paper texture showing through in the print. I don't see why you'd need thinner paper.
There's the chance that thinner paper might actually show the paper fiber easier. A thicker RC paper diffuses more of the light through the backside.
There might be a difference in sharpness of the print, based on the negative thickness, though I use a condenser enlarger as my contact printing light source just for this reason, as the light is more directional/collimated and should enhance sharpness (think condenser over diffuse enlargers re:sharpness and micro-contrast.)
I'd suggest use a grade 2 RC paper negative (so that the negative contrast is independent of the subject's color temperature) and a condenser enlarger as a contact printing light source. Should work fine.
~Joe
PS: One caveat is if you intend on alternative processes, where UV light is used, then of course you wouldn't use an enlarger as a light source.
When I was doing paper negatives ( a long time ago), I preferred single weight fiber paper. I would often use pencil, on the reverse side of the paper, to add to the highlight areas, before contact printing a positive. I don't know if you use this technique, but it's harder to do on RC paper.
That's a useful dodging mask technique. If the paper-base is too 'shiny', being RC or whatever, then a piece of tracing paper can be laid over the back of the paper-neg to take the pencil. It loses a little bit more light, but can still be useful.
I hope OP will come back and report how the Slavich paper works.
I agree that using pencil on the back is an interesting technique. Lately I've been playing around with Dead Link Removed technique, and you can "burn" on the back of the interpositive and "dodge" on the back of the negative. There is a lot of control possible. I'm a beginner but have already made contact prints using this process that brought out skies that are difficult to print using traditional dodging and burning under the enlarger ( e.g. burning sky when there is a difficult horizon ). Although my purpose is to make large negatives for other uses.
For alt processes, I don't know about FB but the three kinds of RC paper I've tried all have optical brighteners in them that glow strongly under a UV light. This may cause the entire paper to become a more diffuse source when contact printing, but I'm not sure about that ( the "glow" might not have much UV in it, so maybe it doesn't really matter. )
Here's a recent enlarged paper negative from one of my favorite photographers.
hi analog65
you might also make sure that whatever paper you use doesn'thave
the maker's information embossed on the back.
have fun making paper negatives, it is a lot of fun
good luck !
john
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