Mark, thanks for the tip on the demo clips. I've fixed the links. Someday I'll figure out PHP....
The HVX setup involve the 82-72 step down ring, then a custom made 72mm achromat, the adapter, and whatever 35mm lens you're using. That sounds like a recipe for disaster, but as Bob's footage demonstrates, it's not :-) I don't believe any adapter can claim to offer 0 loss in resolution, but the Brevis is being recognized as being one of the sharpest and lowest light losers out there.
I've found that if a user can get backfocus correct, optimal f stop settings (after hopefully testing their 35mm lenses), and get correct exposure, the HVX is my favourite so far. The camera's focus assist, great control layout, dampening mass, and outstanding image make it a great match for the adapter. Bob Gundu demonstrates a very good understanding of the camera, the adapter, and his collection of Nikon lenses.