Different types of light microscopes
The two most common types of microscopes are compound microscopes and stereo microscopes (dissecting microscopes). Stereo microscopes are frequently used to observe larger, opaque specimens. They generally do not magnify as much as compound microscopes (around 40x-70x maximum) but give a truly stereoscopic view. This is because the image delivered to each eye is slightly different. Stereo microscopes do not necessarily require elaborate sample preparation.
Compound microscopes magnify up to about 1000x. The specimen has to be sufficiently thin and bright for the microscope light to pass through. The specimen is mounted on a glass slide. Compound microscopes are not capable of producing a 3D (stereoscopic) view, even if they possess two eye pieces. This is because each one of the eyes receives the same image from the objective. The light beam is simply split in two.