In light of the tmx update a few years ago, it's encouraging to see that they're explicitly saying that the sheet film won't be UV opaque (the 35mm and 120 will).
I've just today printed two strips of 120 negatives, each containing the same pictures. One is TMY, the other the new reformulation. I made these negatives in the same location, using the same lighting, exposure, camera and lenses. The only difference was the film. I didn't shoot complete rolls so that I could cut the exposed portions off and fit them both on the same reel for development. They were developed together in a tank of Panthermic 777.
I am happy to report the following:
1) The new TMax is faster. The shadows are more open than the old TMax 400. I don't think it's quite a stop faster; perhaps about 1/2 stop, but definitely noticeable.
2) The prints from the newer film showed much greater contrast. I printed the two strips together onto a sheet of Canadian Grade 2 Azo, the lowest contrast paper I have. The TMY is flat and a little muddy. The reformulated TMax negative next to it is dazzling. And it's just a first proof. This is the most exciting feature to me about this new film, as I would like to be able to print more negatives on that paper.
3) There is absolutely no visible degradation due to any UV opacity from dyes in the backing. Mike Kadillak, if you're reading this, please confirm with Kodak that the rolls I was sent incorporated the blocking. If they did I'll be ecstatic, because it means that I can make contact prints with this rollfilm unlike TMX, which I find unprintable.
If the sheet film outperforms the current TMax to this extent, Kodak will really have given us something here. Those of us who print on Azo or pt/pd will probably have to adjust our processes to
reduce contrast (boo hoo!) but without sacrificing the short toe, long (well over D 2.5) straight line characteristic curve, and virtually no shoulder. We shouldn't have to push nearly as much to obtain the contrast we're getting now with low SBR scenes.
That's my story and I'm sticking to it.