Re: Ilford Ortho +

From: Keith Schreiber (jkschreiber@earthlink.net)
Date: 12/06/02-09:47:20 PM Z

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Hi Jeff,

I haven't used Ortho Plus in the field, but for negative duplication work I
found it to have an EI in the range of about 25. Xtol 1:2 at 75°F for 8
minutes should produce a very nearly straight line response for an ES of
1.8. HC110 F (1:79) at 75°F for 10 minutes should produce a negative of
similar scale but with more toe and shoulder. All of this data was derived
using Phil Davis' BTZS testing procedures and verified through practical
use. I haven't used it with any pyro formula.

Keith

J Keith Schreiber
www.jkschreiber.com
jkschreiber@earthlink.net

Jeff Buck wrote:
> Greetings to the List.... I've got a box of Ilford Ortho+ 8x10 sheets
> gathering dust that I'd like to shoot. Plain vanilla natural light
> in-camera use. Anybody give me an idea what speed to attribute to it
> for typical 4-to-7 stop SBRs? I'm thinking I shot some at EI 80
> previously. This is for development in WD2D Pyro, but I could
> certainly do HC110 and would be interested in any ratings for whatever
> developer. Thanx. -jeff buckels

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