A lens design such that specimens that appear centered in the field of view at one magnification level will also appear centered when the magnification level is changed. See also: parfocal BACK

A compound microscope with two eyepieces viewing down a single optical channel and objective. This is different than a stereo microscope, which has a separate optical channel for each eye.  Click here [..]

A compound microscope with one eyepiece such as that pictured at the top of this page. BACK

A binocular microscope with a third, vertical viewing port. The vertical port can be used with an eyepiece for a second person, such as an instructor, to view the specimen, or it can be used with an a [..]

an eyepiece with an achromatic doublet lens designed in such a way that it does not have to be limited to viewing only in its center, and the portion of the lens that allows non-distorted viewing is l [..]

an advanced illumination system which uses a lens under the stage that would typically move in the vertical direction. It would usually also have an adjustable iris to control the beam diameter of the [..]

a lens specially designed and coated to correct for the tendency of light to separate into colors when passing through glass. An achromatic lens corrects this such that colors are more accurate after [..]

a.k.a. C/CS-mount, is a threaded standard developed for mounting a lens to a camera. Most commonly used for video cameras (i.e., CCTV cameras, not camcorders), and is used to mount cameras to microsco [..]

A configuration where one knob is centered on top of another. For example, coarse and fine focus may have a larger coarse focus knob with a fine focus knob on top of it (so the center of both knobs is [..]

Literally a microscope with multiple lenses, however that describes virtually all modern microscopes. It has come to refer to the high-powered microscope such as that pictured at the top of [..]