Motic stereohead SMZ-171-TH, 7,5-50x, trinocular (46645)

This stereo zoom microscope head is designed for high-precision observation in laboratory and industrial environments. It features a Greenough-type optical system for clear, three-dimensional imaging. The trinocular tube offers a 45º viewing angle and can be rotated 360º for flexible positioning. Widefield eyepieces (N-WF10X/23mm) provide a broad field of view, and the zoom ratio of 6.7:1 supports a magnification range from 7.5X to 50X. The working distance is 110 mm, and the ESD version is suitable for electrostatic sensitive industries.

SMZ-171 Series Overview

The SMZ-171 Stereo Zoom microscope is an optically advanced addition to Motic’s established SMZ Stereo series. With new materials for ESD compatibility and optimized LED illumination options, this series is highly versatile for biological, medical, and material science applications. The SMZ-171 combines excellent optical performance with a wide range of accessories, making it ideal for routine laboratory work and demanding research. It consistently delivers clear, distortion-free images for tasks ranging from biological sample preparation to industrial quality control. The Greenough optical system provides a 6.7:1 zoom range that is parfocal at all magnifications, and a 5-position click-stop mechanism ensures precise and repeatable measurements. The standard 110 mm working distance offers ample space for viewing and manipulating samples, while the enhanced depth-of-view ensures sharp, three-dimensional images. The SMZ-171 can be easily upgraded for digital documentation by adding a Moticam camera.

General Specifications

• Greenough Optical System

• Achromatic optics with anti-fungus treatment

• Widefield binocular or trinocular observation tube, 45º inclined (light distribution 0:100 right eyetube/trinotube in photo position)

• Widefield high eyepoint eyepieces, WF 10X/23 with diopter adjustment, +/- 5 dpt

• Interpupillary distance: 48-75 mm

• Zoom ratio: 6.7:1 with 5 clickstops

• Standard magnification: 7.5X-50X

• Working distance: 110 mm

Zoom Range

The 6.7:1 zoom ratio allows smooth transition from macro overview to detailed micro observation, covering a magnification range of 7.5x to 50x. The parfocal design eliminates the need to refocus while zooming. Auxiliary objectives and eyepieces can extend the total magnification from 2.25X up to 200X.

Auxiliary Objectives

A standard working distance of 110 mm allows for easy sample manipulation at any magnification. The maximum field diameter with 10X eyepieces at the lowest zoom is 30.7 mm.

Eyepieces

Widefield 10x/23 mm eyepieces are comfortable for all users, including those who wear glasses. Each eyepiece has individual diopter adjustment (+/- 5 dpt) for precise focusing and can accommodate measuring reticules. Additional magnifications and reticules are available.

3-D Imaging

The Greenough optical system, with completely separated optical paths, provides high-quality, distortion-free 3D images. The system achieves a maximum resolving power of 460 lp/mm with a 2x auxiliary objective.

Working Distance

The standard 110 mm working distance can be extended to 301 mm with auxiliary objectives. For higher total magnification, combine objectives less than 1X with high-magnification eyepieces (up to 20x).

Optical Heads

Available in binocular or trinocular versions with a 45° viewing angle, 10X eyepieces, and a built-in 1X objective. Interpupillary distance is adjustable from 48 mm to 75 mm. A 60° binocular head is available for specialized needs. All optics are anti-fungus treated for use in humid environments.

Modular Configuration

The SMZ-171 is compatible with a variety of stands, including classic pole stands (32 mm diameter), new arm stands, and industrial boom stands for larger samples. ESD versions are available for electrostatic-sensitive environments.

Illumination

A wide range of illumination options is available, including ring lights for shadow-free imaging and cold light sources with light guides for detailed surface visualization.

Digital Documentation

The SMZ-171 can be paired with Moticam digital cameras and software to create a complete documentation and analysis workstation. The trinocular version supports different camera adapters for various chip sizes.

Accessories

• 360° rotatable gliding stage for multidirectional sample movement

• Attachable x/y-stage with 76 x 54 mm travel range for precise movement

• Polarizer and analyzer for birefringence analysis

• Darkfield insert with iris diaphragm for adjustable illumination aperture

Technical Specifications

Optics
Magnification: 7.5X–50X
Eyepiece: 10X
Optical system: Greenough

Mechanics
Type of build: Trinocular
Focusing: Coarse movement
Working distance: 110 mm

Special Features
Wide-angle eyepiece: Yes

General
Colour: Grey/black
Series: SMZ-171

Field of Application
Industry: Yes
Odontotechnics: Yes
Metallurgy: Yes
Materials technology: Yes
Semiconductor technology: Yes