Compound microscopes are high-precision optical instruments used to magnify small specimens with high resolution. They employ multiple lenses—an objective lens close to the specimen and an eyepiece lens for viewing—to achieve magnifications typically ranging from 40x to 1000x or more.
Designed for examining thin, transparent samples such as cells, tissues, and microorganisms, compound microscopes are widely used in biology, medicine, education, and research. Many models include features like adjustable illumination, mechanical stages, and fine/coarse focusing for precise observation.