Archived posting to the Leica Users Group, 2001/08/05

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Subject: Re: Tri-X 320...extended sensitivity in the shadows? Was- RE: [Leica] Re: Leica Users digest V20 #217
From: shino@ubspainewebber.com
Date: Sun, 5 Aug 2001 15:00:11 -0400 (EDT)

kodak's site has some information on this:

- -rei

http://www.kodak.com/cluster/global/en/service/faqs/faq0031.shtml

Frequently Asked Questions

 KODAK TRI-X Pan Professional Film vs KODAK TRI-X Pan Film

 How is KODAK TRI-X Pan Professional Film different from KODAK TRI-X Pan Film? 
 KODAK TRI-X Pan Professional Film has a longer toe on its characteristic curve
than KODAK TRI-X Pan Film. The longer toe  results in superior shadow detail
when you use exposure equipment and techniques that minimize flare. In
addition, the longer toe  gives the film a different speed point, and thus is
rated at ISO 320. TRI-X Pan Professional Film also has a coating on the base 
 side which makes retouching possible.

 Kodak and Tri-X are trademarks.

 FAQ0031

> From: "Austin Franklin" <darkroom@ix.netcom.com>
> 
> 
> [msxmaniac writes of Tri-X 320]
> 
> > The ISO 320 emulsion, apart from its lower speed, has a more extended
> > sensitivity in the shadows.
> 
> Where do you get that information from?  Please be VERY specific.
> 

Replies: Reply from "Mxsmanic" <mxsmanic@hotmail.com> (Re: Tri-X 320...extended sensitivity in the shadows? Was- RE: [Leica] Re: Leica Users digest V20 #217)