Hmm, that's very interesting. I have to look into getting those filters. I recently tried my old Red 25a on a digital Nikon and it did nothing that I can tell. With film I used to get black skies and puffy white clouds. I was deeply disappointed. I'm not very technical, so maybe there are settings for that as well. I was in monochrome/B&W mode.
Yes,cause maybe the problem will lasts forever,and life is short we must enjoy it Everywhere on earth there are nice places and good and bad people,without generalisation. At least photographers dont need prejudices