AUC-390M & AUC-390MFLED Motorised Research Grade Parallel Zoom Stereo Microscopes

Precision Motorised Zoom Stereo Microscopy for Advanced Research & Industrial Inspection

The AUC-390M and the AUC-390MFLED are premium motorised research-grade stereo microscopes engineered for laboratories, universities, biomedical research, semiconductor inspection and advanced industrial quality control. Featuring an Infinite Parallel Galileo Optical System with a Plan Apochromatic Objective, these microscopes deliver exceptional image clarity, true colour reproduction and outstanding optical performance across an impressive 18:1 zoom range.

Designed for demanding users, the AUC-390M Series combines motorised precision with ergonomic operation, allowing effortless control of zoom, focus and illumination using an intuitive electronic controller with integrated LCD display.

Both models can be supplied with a  C-Mount Camera Adapter, making them ready for digital imaging, documentation and image analysis.

Key Features

• Infinite Parallel Galileo Optical System
• Premium Plan Apochromatic 1× Objective
• Large 18:1 motorised zoom ratio
• Magnification range from 7.5× to 135×
• Motorised precision focusing
• Motorised  zoom control
• LCD controller displaying microscope status
• Built-in aperture diaphragm
• Long 60 mm working distance
• High eye-point widefield eyepieces
• Trinocular head for digital imaging
• Available with advanced LED fluorescence imaging

Motorised Control for Greater Productivity

Unlike conventional stereo microscopes, the AUC-390M Series provides fully motorised control of key microscope functions.

The supplied controller allows users to operate:

• Zoom magnification
• Focus position
• LED illumination brightness

A clear LCD display provides real-time information on microscope operating status, allowing repeatable settings and improved workflow efficiency.

Ideal for:

• Research laboratories
• Image capture
• Measurement applications
• Multi-user facilities
• Quality control environments

Outstanding Apochromatic Optical Performance

The premium Plan Apochromatic objective delivers exceptional optical correction by bringing multiple wavelengths of light into a common focal plane, providing:

• Outstanding colour fidelity
• Excellent contrast
• Superior resolution
• Flat-field imaging
• Minimal chromatic aberration
• Exceptional image sharpness across the entire zoom range

The standard objective offers:

• 1× Plan Apochromatic Objective
• 60 mm Working Distance
• Numerical Aperture: 0.15

Large 18:1 Zoom Range

The motor zoom provides magnification from 0.75× to 13.5×, 

Using the supplied optics, the microscope provides: (10x eyepieces and 1x Objective)

• 7.5× to 135× total magnification

Ideal for applications requiring rapid changes between overview and detailed inspection.

Precision Motorised Focusing

The AUC-390M Series incorporates an advanced three-speed motorised focusing system designed for precise sample positioning.

Features include:

• Three-speed motorised focus
• 110 mm focusing range
• Coarse focus
• Fine focus
• Ultra-fine focus
• Precision focusing accuracy down to ≤0.01–0.1 mm/s

Perfect for demanding imaging applications where repeatable focus is essential.

Built-In Aperture Diaphragm

An integrated aperture diaphragm enables optimisation of:

• Depth of field
• Contrast
• Resolution
• Image brightness

Delivering improved image quality for both biological and industrial specimens.

Comfortable Ergonomic Design

Designed for prolonged daily use, the AUC-390M Series features:

• Comfortable 20° inclined trinocular viewing head 100/100 
• Adjustable interpupillary distance (50–76 mm)
• Diopter adjustment
• High eye-point widefield eyepieces
• Smooth motorised controls
• Ergonomic viewing position

Helping reduce operator fatigue during extended observation sessions.

Choose the Model That Best Suits Your Application

AUC-390M

The AUC-390M delivers advanced motorised stereo microscopy for laboratories and industrial environments requiring precision observation and digital imaging.

Features include:

• Motorised zoom
• Motorised three-speed focus
• LED transmitted illumination
• Precision electronic controller
• LCD status display
• Glass stage insert (180 mm diameter)
• Trinocular camera port

Ideal for routine laboratory work, research, quality assurance and manufacturing inspection.

Optional Ring Light and Goosenecks available 

AUC-390MFLED

The AUC-390MFLED combines all of the capabilities of the AUC-390M with an advanced LED Epi-Fluorescence System, making it an excellent solution for fluorescence microscopy and biomedical research.

The integrated fluorescence system includes:

• Five-position fluorescence module turret
• Capacity for four fluorescence filter modules plus one brightfield module
• High-performance four-band LED illumination
• Adjustable fluorescence brightness
• Brightfield filter cube
• Quarter-wave (¼λ) plate
• Light shading plate
• External LED controller

Included Fluorescence Filters

The AUC-390MFLED is supplied with the following fluorescence filter sets as standard:

• B Filter (Blue)
• G Filter (Green)
• U Filter (Ultraviolet)
• R Filter (Red)

Additional filter sets, including FITC, DAPI and TRITC, are available for specialised fluorescence applications.

Digital Imaging Ready

Both models can be provided with a  C-Mount Camera Adapter, allowing simple connection to compatible microscope cameras for:

• Image capture
• Live video
• Measurement
• Documentation
• Reporting
• Teaching and training

Typical Applications

The AUC-390M Series is ideally suited to:

Life Science

• Biological research
• Live cell imaging
• Cell culture
• IVF laboratories
• Zebrafish research
• Histology
• Dissection
• Medical research
• Chemical analysis

Industrial Inspection

• PCB inspection
• SMT inspection
• Electronics manufacturing
• Semiconductor inspection
• Precision engineering
• Materials science
• Metal inspection
• Component quality control

Laboratory

• Universities
• Research institutes
• Pharmaceutical laboratories
• Clinical laboratories
• Biotechnology laboratories
• Quality assurance laboratories

Specialist Applications

• Gemology
• Jewellery manufacture
• Watchmaking
• Coin inspection
• Conservation
• Precision engineering
• Engraving
• Small component repair

Standard Specification

Optical System

• Infinite Parallel Galileo Optical System
• Plan Apochromatic 1× Objective
• 18:1 motorised zoom ratio
• Zoom range: 0.75×–13.5×

Eyepieces

• High eye-point Plan Widefield 10×/23 mm
• Diopter adjustment

Viewing Head

• 20° inclined trinocular head 100/100
• Adjustable interpupillary distance (50–76 mm)

Motorised Focus

• Three-speed motorised focusing
• 110 mm focusing travel
• Coarse, fine and ultra-fine focus modes
• Precision focusing down to ≤0.01–0.1 mm/s

Working Distance

• 60 mm

Camera Port

• Trinocular camera port

Illumination

• LED transmitted illumination
• Adjustable brightness

Optional Accessories

• 15× Widefield Eyepieces
• 20× Widefield Eyepieces
• LED Ring Light
• Fibre Optic Cold Light Source
• Digital Microscope Cameras
• Additional Fluorescence Filter Sets (FITC, DAPI, TRITC)
• Image Analysis Software

Why Choose Auckland Scientific?

When you purchase an AUC-390M Series microscope from Auckland Scientific, you're investing in professional support as well as exceptional instrumentation.

Every microscope is backed by:

• 3-Year Auckland Scientific Warranty
• Expert product advice
• UK technical support
• Installation assistance
• Operator training
• Preventative maintenance
• Service and repairs
• Calibration support (where applicable)
• Long-term after-sales support

Whether you're carrying out advanced fluorescence imaging, biological research, semiconductor inspection or precision industrial analysis, the AUC-390M and AUC-390MFLED provide the accuracy, automation and reliability required for the most demanding professional applications.