In article <32A8AF2E.7357@slip.net>, pme@slip.net says...

>Several aftermarket suppliers make tripod brackets for the Nikon 80-200
>2.8. Before I drop more cash on a Kirk bracket, I have a question about
>my configuration.
>If I am using an Arca Swiss ballhead, the F4S, and the 80-200, do I
>absolutely need the bracket? The F4 is pretty heavy and construction
>solid. Do I risk harming the lens and/or camera by going bracketless?

No, but it is difficult without using a quick release plate without a
lip to avoid rotation of the camera on the plate when shooting verticals
(Really Right Stuff sells compact, well-made plates with an edge lip
[custom for each camera model] that prevents rotation). Even with the
RRS plate, vertical orientation of the camera is less stable than it
would be with a rotating lens bracket for the 80-200. (I may have to
break down and buy the Kirk, alas, for the one type of job I do that
requires tripod mounted vertical orientation with the 80-200mm f2.8
[all my other work with that lens can be done hand-held].)
Hope This Helps