http://www.nikonchat.com/nikon-camera-manual-download/
Where I can find a user manual for a Nikon N80?
I've looked at most sites in a search and eBay is the only place where I can find one. I just want to find that I can download to my computer.
The Nikon F80, which is sold outside the U.S., is the same as the N80 sold in the U.S.. There is a manual for the Nikon F80 available overseas, likely to be of use to you. I've included the link below.
Long Exposure Shooting Tutorial (HD)
Nikon News