My old microscope ran out of room for bigger boards. I build and test the Tomlov TM4K-AF Flex, a 4K HDMI autofocus microscope on a flexible arm, on real PCBs.
Tomlov sent me their DM601 HDMI digital microscope, so I put it to work inspecting a fire-damaged, ultrasonic-cleaned Amiga A600 board for lifted pads and leakage damage.