After making 150-odd pictures with the 24mm f/2.8 ai, reversed and on 104mm of extension, and having extreme difficulty with composition and framing, and cursing the quick grip ball head and its extreme lack of precision (and actually quite desperate for a wider angle), I went back to the old standby: the 75-150mm f/3.5 E Series (also reversed and on the same 104mm extension), and ordered a much heavier geared head. GoGo.
2.4:1 is not nearly as impressive as 8:1, but it’s much easier to deal with, for sure.
D7000, Nikon 75-150mm f/3.5 E Series, reversed, on 104mm extension. ISO200, 1/20th, f/3.5.