Alternatively you can preflash the paper at home under an enlarger and use the enlarger timer or use a dedicated pre flasher like the paperflasher. You can actually also post Flash the paper with nearly similar results.
See also the thread on the f295 Forum http://www.f295.org/main/showthread....ing-Paper-Negs
Giuseppe Toffoli
http://giuseppe.toffoli.net
I've just obtained some out dated Ilford photographic paper.
I thinking of cutting some to 4x5 size and trying to produce paper negatives.
However, some basic questions:-
1] Does anyone out there have any real ISO data for Multigrade FB Warm One and/or Multigrade IV RC Deluxe?
2] Alternatively, is there a guessitmate or common practice ISO rating that works most times?
3] Is there any practical reason why any exposed paper negatives cannot be processed (like film) in a Jobo 2500 drum and sheet film insert?
4] Assuming 3] to be a usable option, what would/could be the minimum amount of developer needed - film requires 270ml, but I'm assuming that paper would absorb at lot more.
Any and all information and comment welcome
regards
Tony
I think about ISO 2 or 3 is usually a good starting point. I don't see why processing in a jobo tank couldn't work, apart from the fact that it's easier to work out when to stop developing if you can see what's happening. The only paper negatives I ever did I just developed as any print and I pulled them when they looked about done.
I recently exposed some Ilford MGWT in 5x7 as film holder test at EI 6 and 3. They are heavily overexposed and tough to scan or I would have shared them here earlier. More testing is indicated.
--- Steve from Missouri ---
Thanks Ray
That explains/answers the reason I made my posting.
I'd been looking through the postings of this forum I could not understand why (significantly) different ISO ratings were apparently used for the same paper. I had assumed that the 'shooting conditions' would only effect the exposure.
regards
Tony
Bookmarks