Contrast adjustment factor for Tmax400 and XTOL

Work from home

Work from home

  • 3
  • 2
  • 180
^

A
^

  • 8
  • 2
  • 226
portrait

A
portrait

  • 2
  • 1
  • 269
Nature Photographers

D
Nature Photographers

  • 0
  • 1
  • 166
Oh, deer?

D
Oh, deer?

  • 0
  • 0
  • 100

Forum statistics

Threads
178,545
Messages
2,455,769
Members
94,560
Latest member
Sixbysix
Recent bookmarks
0

tkamiya

Member
Joined
Oct 3, 2009
Messages
4,289
Location
Central Flor
Shooter
Multi Format
I wanted to share this information from Kodak.

If you process Tmax400 with XTOL and read F-4043, on page 8 there is a correction factor chart. However, data for XTOL is missing. I started this research because I use condenser type enlarger, and correction "to the left" is necessary, according to a statement on page 3 and 8.

So, I asked Kodak and here's a clip from an e-mail reply.

--------------------------
For TMAX 400
Relative Contrast
Dev Temp Dil -20% Norm +20% +40%
XTOL 75F Full 0.63 0.79 0.95 1.10
XTOL 68F Full 0.80 1.00 1.20 1.40
XTOL 75F 1:1 0.59 0.74 0.89 1.04
XTOL 68F 1:1 0.80 1.00 1.20 1.40
--------------------------

I hope this is useful to someone.
 
Photrio.com contains affiliate links to products. We may receive a commission for purchases made through these links.
To read our full affiliate disclosure statement please click Here.

PHOTRIO PARTNERS EQUALLY FUNDING OUR COMMUNITY:



Ilford ADOX Freestyle Photographic Stearman Press Weldon Color Lab
Top Bottom