In article , wjeffers@surfsouth.com says...

>Does anyone have any experience with the Nikkor 500mm/f8 reflex lens?

Uh, which one...?
I prefer the older (non-macro, larger) version, which is optically fine
(though it possesses the usual mirror characteristics...), and is even good
on a Nikkor TC14/14B converter (VERY few mirrors are good enough to perform
well on converters...).
You may be interested in my "SUBJECTIVE Lens Evaluations (Mostly Nikkors)",
on my web site, under "I babble".
Hope This Helps
(David Ruether - http://www.fcinet.com/ruether )