Search: Mag=2650X(3000X with screen up), Spotsize=3-5, image mode

Alternatively, at 2650-3400x, switch to Diff. mode by pressing "Diff" button. Adjust camera length to 680mm using "Mag" knob. Focus the diffraction spot using [ Focus ] knob, and then adjust "defocus" until the image inside central spot expands to proper size. Personally, I like to "defocus" to clockwise side. What you got is a shadowing image inside of defocused diffraction central beam. The advantage of this is high contrast compared to a normal image mode.

Focus: Mag=175kX, Spotsize=6. When work with tilting stage, make sure S1 or S2 sits on tilting axis of the geonimeter, the angles will posted on the panel.

Record: Mag=53000X(60kX), spotsize=3-5