Archived posting to the Leica Users Group, 2001/08/05
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]As you may have guessed from the comment below, I obtained the information from Kodak's technical documentation, and since you want me to be VERY specific, it was Kodak publication F-9, catalog number 193 7101 (revised 6-99). The idiosyncrasy of TXT/TXP is apparent from the characteristic curves of the two varieties of Tri-X, VERY specifically, F002_0355AC, F002_0357AC, F002_0361AC, and F002-0363AC. - ----- Original Message ----- From: <shino@ubspainewebber.com> To: <leica-users@mejac.palo-alto.ca.us> Sent: Sunday, August 05, 2001 21:00 Subject: Re: Tri-X 320...extended sensitivity in the shadows? Was- RE: [Leica] Re: Leica Users digest V20 #217 > 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. > >