Designating a microscope with a threaded barrel which can be turned in order to adjust the focus. Now historical.

Of an optical instrument: having two or more eyepieces. Obsolete.

Of, relating to, or involving microspectroscopy.

Showing an accurate three-dimensional image, spec. without the reversal of convexity and concavity produced by pseudoscopic instruments.

Made using an electron microscope; relating to or involving the use of an electron microscope.

a technique in microscopy of introducing a phase difference between components of the light supplied by the condenser so that interference causes…

Of a microscope or its body tube: having provision for a camera in addition to eyepieces for both eyes.