AmScope 3.5X-90X Surface Inspection 144-LED Zoom Stereo Microscope + 18MP USB3.0 Digital Camera

AmScope 3.5X-90X Surface Inspection 144-LED Zoom Stereo Microscope + 18MP USB3.0 Digital Camera


SKU: SM-1TSZ-144S-18M3

Regular price $870.99
Regular price $1,091.99 Sale price $870.99
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AmScope 3.5X-90X Surface Inspection 144-LED Zoom Stereo Microscope + 18MP USB3.0 Digital Camera
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This is a trinocular stereo zoom microscope with a compact stand with 12" pillar. The stand's base has a small footprint to take up minimal space. The microscope incorporates all the most excellent features of a high quality laboratory instrument. Designed to meet the demands of modern microscopy applications, this microscope exceeds all expectations. It comes with SUPER widefield optics and basic table stand. This microscope offers high resolution and good depth within a broad field of view. It provides crystal clear sharp stereo images with a 4" (100mm) native working distance. Its 45 degree inclined ocular tubes ensure an easy observation and rubber eyeguards provide further comfort. Its trinocular port enables you to add photo or video capability.

The stereo optics provide clear, sharp images with excellent focus-depth and a large working-distance. With 0.7X-4.5X zoom objectives, moving through the magnification range is as easy as turning a knob. 10X wide-field eyepieces provide an ample magnification range from 7X to 45X, with high-eyepoint optics to accommodate glasses or goggles. 0.5X and 2X Barlow lenses are included, which can be alternated to either halve or double the magnification range, expanding the possible magnifications to 3.5X-90X.

This microscope is useful for many applications. It can be used in gemology, geology, forestry, archaeology, agriculture and biology. It is appropriate for educational purposes in hospitals and schools. It is great for the exploration of the world of surface details and fine structures of various materials like wood, metal, solder, semiconductor and gemstone. It is perfect for the examination of insects, plants, rocks, stamps, coins, jewel, soldered points, microelectronic components, circuit boards or virtually any three dimensional objects. This scope is an ideal tool for research labs, gemologists, collectors, engravers, watchmakers, jewelers, dies-makers, philatelists, and anyone in semiconductor or electronic industry.

Monitor and capture photos and videos with the included 18.0MP USB3.0 camera. The C-mount camera is specially designed for use with microscopes, allowing you to watch live images, and to record photos or videos on your computer. This ability to view microscopic images on your computer reduces eye-strain, and allows groups of people to view images at the same time. The USB 3.0 connection provides greater bandwidth for faster frame-rates. A 0.5X reduction lens is included for use with 23mm-30.5mm ports to capture more of the microscope's field-of-view. Our professional software for Windows provides a wide assortment of capture and photo-editing functions including color correction, time-lapse capture, image stitching, and a full complement of measuring tools. A lite version of our software is available for Mac and Linux with essential functionality for capturing photos and videos.

This package includes a 144-LED ring-light for bright and cool illumination. This lightweight illuminator mounts to the microscope’s objective housing, and projects a smooth, encompassing field of light over objects, eliminating most shadows. Whether used as the sole light-source or in combination with additional illuminators, the ring-light produces a crucial light pattern for virtually any application. Energy-efficient and producing low heat, this ring-light can be used with biological specimens as well as industrial.

Features :

  • 0.7X-4.5X Continuous Zoom Objective Lenses
  • A photo port for adding a camera
  • 30mm Super Widefield Oculars
  • 4" (100mm) Large Native Working Distance
  • 45 Degree Inclined Ocular Tubes
  • Crystal Clear Original True Color Images
  • Erect Sharp Stereo Images over a Super Widefield of View
  • High Resolution with Great Flatness and Contrast
  • Accurate Alignment Ensuring Fatigue-Free Comfortable Observation
  • Both Ocular Tubes with Adjustable Diopters
  • Adjustable Interpupillary Distance
  • Full Optical Glass Elements
  • Precise Ground Glass Lenses
  • Metal Pillar Stand Finished with Stain Resistant Enamel
  • All Metal Mechanical Components


Microscope Head
Head Type Trinocular, 45° incline, 360° rotatable
Optical System Greenough stereoscopic
Interpupillary Adjustment Compensation-free gemel, 54-76mm
Ocular-port Diameter 30mm
Dioptric Adjustment Both oculars, ±5dp
Eyepieces 10X
Photo Port height-adjustable 23mm tube, SM series
Objective Lenses 0.7X-4.5X zoom
Objective Numerical Aperture 0.065 @ 4.5X
0.02 @ 0.7X
Objective Resolution 195 lp/mm @ 4.5X
60 lp/mm @ 0.7X
Native Field-of-View (10X Eyepieces) 4.4mm-28.6mm
Native Working Distance 100mm
Auxiliary (Barlow) Lens 0.5X, 165mm working distance
2X, 30mm working distance
Stand Type Pillar stand with large base
Stand Dimensions Base: 10" x 7-7/8" x 10.75" (254 x 200 x 275mm)
Pillar 12" (300mm) height, 1.25" (32mm) diamater
Focusing-block Focus Range 50mm
Stage Plate Diameter 95mm

Camera Specifications
Sensor Type CMOS
Sensor Optical Format 1/2.3"
Active Pixels 18M (4912 x 3684)
Pixel Size 1.25µm x 1.25µm
Active Sensor Area 6.14mm x 4.61mm
Shutter electronic rolling shutter
Spectral Response 380-650nm with IR-cut filter
Capture Resolution and Maximum Framerate 5.6fps @ 4912x3684
18.1fps @ 2456x1842
32.2fps @ 1228x922
Connectivity USB 3.0
Lens-mount C-mount
Compensating Lens 0.5X
Power 5VDC over USB


OS Requirements Windows (32/64 bit) XP/Vista/7/8/10, Mac OS 10.8+, Linux kernel 3.13+
Hardware Requirements Intel Core2 2.8GHz or comparable processor, 4GB RAM
Windows Version
Live video preview
Captures still images and video
Time-lapse capture
Exposure and white-balance controls
Dark-field correction
Digital binning
Image processing
Measurement tools, including lines, arcs, polygons
Segmentation and counting tools
Image-stitching, extended depth-of-field, HDR
Fluorescence color-mapping
Mac/Linux Versions
Live video preview
Captures still images and video
Exposure control
Color adjustment
Measurement tools, including lines, arcs, polygons

Packing List:

  • One trinocular stereo microscope head
  • One photo port
  • 10X eyepiece(s)
  • One 0.5X Barlow lens
  • One 2X Barlow lens
  • One pair eye-guards
  • One stand base
  • One stand pillar
  • One focusing block
  • One pair stage clips
  • One black/white stage plate
  • One hex wrench
  • Screws and washers
  • One C-mount USB camera
  • One 0.5X reduction lens
  • Two sizing adapters
  • One USB 3.0 Type B to type A cable
  • One software CD
  • One LED ring-light
  • One AC adapter
  • One ring-light mounting adapter


Shipping & Returns


We provide complimentary UPS ground shipping for online orders exceeding $99 to all destinations within the Continental U.S.A. Most items are drop-shipped from one of our suppliers. Due to the highly configurable nature of microscopes and our vast product portfolio, lead times can vary. Should you need expedited shipping, kindly reach out to us for a personalized quote and to ensure your availability.

We welcome international orders on a case-by-case basis. Buyers are accountable for any international duties, taxes, brokerage, or import fees that may be incurred. We encourage customers to reach out to us at prior to purchase, to ensure the microscope will meet their needs and expectations.


For most items, we accept returns within 14 days of purchase, with the buyer responsible for covering all shipping charges. Please refer to our Full Returns Policy for further details. (Note: Many returns stem from purchasing the wrong product for a specific application. To prevent this, we recommend consulting a Microscope Central expert before making your purchase.

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