Originally Posted by Simon R Galley
in the cross section picture there is (under the overcoat) on top the (I quote) "Fast Emulsion Layer, Tabular Grains".
And under this layer the "Slow Emulsion Layer, 3 Dimensional Grains".
The next page (9) there is also a cross section picture of Tri-X: And the 3 Dimensional Grains in the layers there look similar in shape compared to the 3D Grains in the TMY-2.
So both from the text in the book, and both cross section pictures it looks like TMY-2 has both traditional and T-Grain crystals.
Maybe Robert and Ron can help us here, I will ask them.