Precision Focus
Why Should You Only Use the Fine Focus Knob with the 40x Objective on a Microscope?

Learn why using only the fine focus knob with the 40x microscope objective prevents damage and ensures precise focusing.

Microscope Focus Tips
Why Do We Use the Coarse Focus Knob at Low Power on a Microscope?

Learn why the coarse focus knob is essential for low power magnification to quickly locate and focus specimens before fine adjustments.