Why Should You Never Use the Coarse Adjustment Knob at 40x Magnification?
Learn why using the coarse adjustment knob at 40x magnification risks damaging your microscope slide and lens. Use fine adjustment instead for safety and clarity.
Should You Adjust the Coarse Adjustment Knob at Every Microscope Magnification?
Learn why the coarse adjustment knob is used only at low magnifications and how to properly focus at higher magnifications for microscopy.