Microscope 4x Tips
Which Microscope Adjustment Knob to Use with a 4x Lens: Coarse vs Fine Focus Explained

Learn whether to use the coarse or fine adjustment knob when focusing with a 4x microscope lens for optimal clarity.

Objective Lens Selection
Which Objective Lens Should You Use for Microscopy?

Learn how to choose the right objective lens based on magnification and specimen size for effective microscopy.

Microscope Focusing
Why Should the Coarse Adjustment Knob Only Be Used with Low Power Lenses?

Learn why the coarse adjustment knob is recommended only for low power microscope lenses and how to safely focus using high power objectives.