Monorails - I think I might have an idea what that is in German, but I'm not quite sure. Do you happen to have a picture? Sorry for my total ignorance.I really like using 6x9 monorails for macro. This is taking a similar approach to working with the larger format, but with a bit more DoF, much lower film costs, and rather more portability. You still have the benefit of a huge choice of lenses, movements, etc.