Mike,
I have used both the Fujinon C and E series lenses. I own a pair of C series: the 13×4.5 and the 15×7.3. Both of these lenses are quite superior to their ENG brothers. Specifically, there is no vignetting at the end of telephoto range and the stop remains consistent. The images are sharp and luminous. I fine ENG lenses dull in comparison.
The E series are in a completely different league. You would not believe how much detail it is possible to resolve in 720p until you use these lenses. Color and flesh tones are spectacular. The 10×10 is enormous, as big as an Optimo. You are going to need a good assistant.
Most manufactures can arrange demos.
Chris (I think I just wrote and ad for Fujinon) Bell