They list the 320 seperately at 9 minutes at 68F. Tri-X Pan and Tri-X Pan Pro at 8 minutes. Professional Tri-X 400 at 6 3/4 minutes. Wierd.
Don > -----Original Message----- > From: J. C. O'Connell [mailto:[EMAIL PROTECTED] > Sent: Friday, June 24, 2005 6:49 PM > To: [email protected] > Subject: RE: Tri-X question for you B&W shooters. > > > because Im pretty sure one is rated 320 instead of 400. > JCO > > -----Original Message----- > From: Don Sanderson [mailto:[EMAIL PROTECTED] > Sent: Friday, June 24, 2005 7:35 PM > To: PDML > Subject: OT: Tri-X question for you B&W shooters. > > > I see Tri-X packaged as "Tri-X Pan" and "Tri-X Professional". > I assumed there was no real difference as I've also seen it advertised > as Pro when the package said Pan and the other way around. Talking > strictly about the ISO 400 flavor here. Kodak only lists the Pro on > their web site as near as I can tell. > > Here's the rub: The Pan version data sheet says 8 minutes at > 68 degrees F in D-76 while the Pro version calls for 6 3/4 minutes at > 68, also in D-76. Both at 1:1. > > Here's a link to the D-76 data sheet that shows 4 flavors of Tri-X at 3 > different development times at 68 degrees: http://tinyurl.com/89frp > > Does anyone have the answer to this riddle? > Why the rather large difference in soup times? > > TIA > Don >

