Average DMAX for fresh film @ normal ISO: 3.70
KODAK TRI-X 400 - Ei :100~1000
NORMAL dr5 ISO: 320
Tri-X in reality are '2' different films. 'TX' is a different film type than 'TXP'. Different in contrast, tonal range, and overall feel. TX comes in 35mm & 120-rolls.
TX [new emulsion] in developer 1-neutral has a 1st rate neutral. The slight haze of the old emulsion is gone. In developer 2-sepia, TX is slightly less toned than its cousin TXP i.e. the color is a lighter, sepia /yellow.
NOTE
ON OLD TX: Those
of you that have the old emulsion TX in stock please be aware that this
film is ageing rapidly. We have noted that both older TRI-X films are
becoming difficult to run in DEVELOPER-1 NEUTRAL. There is an increasing
yellow stain in these films. If you are using old TRI-X it is best you
run the film in DEV-2-SEPIA. As always we recommend you use fresh film.
OLD
TX NEW TXP / OLD TXP
TX has near the same exposure lassitude as HP5 but on a lower scale. TX has the 2nd highest EI-range in dr5. It is important to use fresh and unabused TX. TX will respond to 1000iso but the film stock needs to be fresh. NOTE; @ 1000iso even the slightest damage will show in this film i.e.; age, X-ray or heat damage. DMAX for TX is around 3.70
NOTE: It is best you use the freshest of KODAK films for dr5. KODAK B&W films are the most susceptible to age damage. Old kodak film tends yellow. While the image quality is fine, old Kodak film is best run in DEV-2. The older the film is the more the highlights will be lost. The films condition worsens with age. Cold store works in some cases but it is best to test this film for use in dr5.
NOTE: TX must be fresh when exposing past 400iso. It is important to keep this film away from any X-ray or heat as the higher iso will show the slightest damage. Damage from age, heat or x-ray can be seen as; lower dmax, lower contrast, blown out whites and a masked haze.
