Coarse Adjustment Warning
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.

Fine Focus Techniques
Can You Use the Fine Adjustment Knob on Low Power Microscope Settings?

Learn why the fine adjustment knob is effective on low power and how it improves focus for clearer microscope viewing.