ann- what is the name of the ultrafine product??
peter
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ann- what is the name of the ultrafine product??
peter
If you check out the May/June 2002 issue of "View Camera" magazine, you will find an article written by Bob Herbst which shows step-by-step instructions for making optically enlarged negatives in the darkroom with the idea of printing for alternative processes. If you are unable to locate that particular issue, you can go directly to his web site at www.bobherbst.com. and click on "Writings". He recommends using APHS film which is no longer available, but you can probably use litho film from Ultrafine.
I have been making enlarged negatives for years using x-ray duplicating film. I use Kodak X-Omat 2 film with Kodak GBX chemistry (there are probably other brands). It is as easy as making a print. Reverse the original negative -- have the emulsion up in the negative carrier. The duplicating film is a reversal film. It is very slow and remember more exposure yields a "lighter" dup and thus a "darker" print from the enlarged negative.
http://www.jeffreyglasser.com/
Freestyle now has a replacement for Ortho Litho back in stock. To amend my previous post, for high
contrast alt work, FP4 would make a nice interpositive, but might not build the higher gamma you
want in the final. But unlike TMax, is available in ULF sizes, albeit relatively expensively. Since I mostly work with sheet film, I make the interpositive by contact in a registered mask exposure frame.
Smaller film can be done this way too, simply by taping to a larger registration strip, or else enlarged
onto the interpositive film.
Curt,Quote:
Originally Posted by Curt
Yes, the x-ray duplicating film is direct - When developed, the sheet of film produces a positive image. The film is very slow and requires very long exposures. I tray develop it in D-72 (pretty much Dektol). For consistency I use the developer as single-shot. This film can safely be handled under safelight.
The box I have doesn't have a brand name on it. If you Google "x-ray duplicating film" you will get several sources. I have not seen the film that Photo Warehouse sells but I expect it is similar. The film comes in a variety of sizes.
As I said in my previous post, I got mine from ebay. I really looked out - no one else bid on it so I got it for the opening bid of $2.50 for a 100 sheet box of 8x10.
Thank you Dan, I have all the missing pieces in place now.Quote:
Originally Posted by DarkroomDan