Horizontal or vertical copy stand for neg scanning

Welcome to the forum @Bogwot6

The forum hosts a separate thread that covers all kinds of setups. You might learn one or two things browsing the thread and reading the posts that look promising.

Stability etc. are very dependent on how a setup is made. From a purely mechanical point of view, anything that connects the negative (or positive) as tightly as possible to the lens beats everything else under similarly sound construction techniques.

Usability depends on other things too and again, several posts can help you discover more.

Note that other threads contain useful hints. Browse topics sorted per view.

Last, but certainly not least: Guide | Negative Lab Pro