'...proper exposure is very important with slides.' It sure is. The rule of thumb when shooting slides: expose for the highlights. A C-note sounds about right for a mint N80. Huuge difference in the handling/features/build between the N80 and F5...huge, likes apples and orangutans! Be sure you're comfy with schlepping around the size and weight of an F5 before committing. An N80 will not meter with manual focus lenses. An F100 closes the gap considerably and quite nicely. I've shot all three bodies and stayed w/ the F100.