The Fujica literature states that the Auto Up is for studio work, so you may not need the hood on the 150. I'll put that combo together and report back.
Regarding the aux finders, I was referring to the "wire" Sportsfinder that replaces the aux eyepieces for fast framing. It fits into the same fixture on top of the camera. The back and front sections fold up into position.
The front has squares within squares representing 65, 100, and 180mm.
The back has a vertical sliding scale that corrects for parallax, depending on distance. It has markings for 1,2,and 5 meters + infinity(and 4,6,and 15 feet + infinity).
Since the parallax correction is mostly up and down as you change lenses, I'm hoping to be able to use the 65mm square on the Sportsfinder for framing the 100mm + Auto Up.
I hadn't thought about using an aux eyepiece for framing with the Auto Up. I'll check that out.
These cameras, lenses, and accessories are really well designed.
Texsport