orthochromatic film

[devecchi]

Bad new for me. Were suspended production of bergger BPFB-18 and MacoGenius Print film. Ilford Ortho plus film is very prohibitive for mi wallet: I've heard of Ortho Litho Arista II film, is a very continuous tone? You can get negative suitable for PT/PD printing or Carbon Printing? Which developer?
Thanks. Sergio

[Mike Wilde]

what about ortho litho film developed in low contrast developer. You don't mention the film format. I presume sheet film. If 35mm search for Kodalith HCS, or 2665/6556 as it was called on 100' rolls. I'm not up on any ortho film in a roll film format.

[devecchi]

Yes sheet film.The problem is that the litho film are structured to graphical applications and also with low contrast developer is very difficult to get enough detail in the shadow like a true film orthochromatic continuous tone.Sergio

[davido]

Lith film is cheap but getting the right development time and temp is tough and the results are in no way consistent.

I have been shooting Scala 120 (I bought a bunch a while back) and sending it DR5. I then print the negative on lith film and develop in LC-1 developer. I used dilute HC-110 (dilutions 1:14 to 1:18 stock) for while but couldn't get the contrast I was after. Even with skipping the inter-positive step, there is an increase in contrast from your original.

There are alot of variables to contend with. Just keeping consistent temp. in a tray is tough. I found that normal try rocking was creating negs with inconsistent development- more density at the edges; so I created an agitation system using a window squeegee which passes over the negative without touching. However, developing times are long, between 12-18 minutes with the LC-1!

Lith film is cheap but getting the right development time and temp is tough and the results are in no way consistent.
So, it's really about your expectations. If you're happy with an image then fine but if you really want to perfect your negative, it can drive you a little crazy!

I recently discovered Medical Dupe film (for xray dupes) and it's quite exciting. See here: http://www.apug.org/forums/forum42/6...negatives.html

-david

[JBrunner]

Here's Jim Galli's recipe for APHS:

http://tonopahpictures.0catch.com/Fr...SwRodinal.html