This morning I decided to experiment finding the No Parallax Point on my D700 + an old 80-200mm f/2.8 lens. Nothing has been typical so I decided to post my findings, with the hope it would help someone, someday.
1- the Nikon 80-200mm f/2.8 is a very heavy lens. In fact it has its own anchor for the tripod. So, I figured that's where the camera plate would be mounted, instead of underneath the camera. Then, surprise: when connected together, the bottom of the D700 and the lower part of the lens tripod attachment are NOT leveled. Put the combo on a table and the camera body is lifted up by 1mm. So, to compensate this offset, the positioning of the vertical rail on the lower rail should be at 61mm, not 60mm. By the way, even with this heavy lens on, I found the stability of the loaded NN5 quite amazing (note: I am using an EZleveller 2...Fantastic device!)
2- I ended up with 62mm @ 80mm focal, 65mm @ 105mm (with the Camera Plate mounted on the lens) - Just FYI.
3- Going further (200mm) is a challenge because the depth of field prevents getting the 2 stands / 1 stand + 1 referential in focus to find the Point of No Parallax. That got me thinking. This may be a big leap of faith in assuming this, but here's my theory: if someone was to create a panoramic picture using a 200mm lens, I would then assume the scene would be distant and therefore, and with nothing in the near field, there wouldn't be any fear of parallax. Therefore the positioning on the upper rail of my NN5 would be irrelevant. Has anyone had any similar experience? let me know!