Wow, what interesting responses! Thank you all. My reason for originally asking, is that I have enough Kodak aerial dupe film (type 2430) to give me several thousand sheets; but it is blue sensitive. I want to do some experimenting with a very high resolution Wild lens I have and would prefer a panchromatic film but with the resolving power of type 2430.
Which begs my asking another more convoluted question.
Is the change in emulsion sensitivity on a molecular level or is it caused by the physical presence of the dye acting in somewhat the same way as a filter? And if so would the use of an optical filter in the image path perform a similar function?