Step zoom Stereo microscope 1x/2x/3x/4x The TST stereo microscope series features a variety of single and dual magnification bodies which are easily paired with our extensive range of frames to build to virtually any required configuration. We also supply optional auxiliary objectives and optional eyepieces to extend the magnification as required for the work at hand. Objective magnifications are available in 1X, 2X, 3X, and 4X. These magnifications are available paired in a body tube as 1X+2X, 1X+3X, and 2X+4X. They are also available as single magnifications only in any of the four available magnifications. The standard supplied unit features 10X wide field high eye-point eyepieces. The frames are available as non-illuminated; and illuminated, with fluorescent or variable intensity halogen transmitted illumination, and variable intensity halogen reflected illumination. These microscopes are used extensively world wide in medical research and health care, biology and botany research, and agriculture, as well as in electronic component manufacturing. They are also particularly well suited for the inspection and production of LC Polymer films, exposed liquid crystals in LC circuits and glass substrates, LCD printing pastes, LED production, fabric and fiber evaluation, electronics assembly, printed circuit board manufacturing, medical device inspection and all types of quality control environments.