Dual magnifier stand

This magnifier stand uses lenses from the Harbor Freight Tools dot com, item #37708. They are $2 each.

These 2" x 4" magnifiers are heavy, thick glass (over 1/2 inch thick in the center) and I've always appreciated the wide, clear view.

They are advertised as 4X power. This magnifier stacks two together, and the result might be (2x4=) 8X or is it (4x4=) 16X ? Optics is not my forte.

Lens spacing and lens-to-object distances are as good as I could estimate them. Field of view, and depth