The Oxford? Precision BCM400 Compound Microscope also known as a biological microscope has a magnification range of a 10x eyepiece, 4x, 10x, and 40x objective lenses and can reveal details at the cellular level.
This is the microscope preferred by medical laboratory technicians examining blood and urine, pathologists screening tissue specimens or smears for cancer cells and microbiologists identifying bacteria in cultures.

Compound microscopes take their name from the way magnification is calculated, by compounding the power of the eyepiece multiplied by the power of the objective to get total magnification; the BCM400 has x400 as the maximum magnification. Because of the magnification the field of view is small and because there is no depth perception (As opposed to dissecting microscopes such as the DSM040 from Oxford Precision) samples are usually mounted on microscope slides. Light is projected from the integral
illuminator below the microscope slide to pass through the specimen to the magnifying objective lens. The magnified image of the specimen projects through the drawtube to the eyepiece where it is magnified, another 10x. The eyepiece sends the image to
your eyes where the lens projects it on to our retina.

Features:
10x eyepiece, 4x, 10, and 40x objective lenses.
High quality prism.
Fully coated optical system.
Objective lenses are of DIN standard and click into position.
Eyepiece with pointer.
Monocular head can be rotated 360.
Separate fine and coarse focus by rack and pinion with a built-in slip clutch and tension adjustment.
Built in illuminator with a blue filter.
Large die cast body for increased stability that is acid and reagent proof.
Supplied with: Protective Dust cover.