AmScope 3.5X-90X Trinocular Stereo Boom Zoom Microscope + Fluorescent Light

Model No: SM-4TZ-FRL

Key Features:

  • 3.5X-90X large stereo zoom magnification power
  • Super widefield optics provide crisp clear sharp images
  • 2-1/2" super widefield of view and 8" working distance
  • 3D boom stand allows to point microscope in any direction
  • 8 Watt fluorescent ring light with mounting adapter
  • Trinocular port for adding photo or video capability

Detailed Description

Offering crystal clear sharp images, this 3.5X-90X trinocular zoom stereo microscope comes with a super widefield trinocular head, an 8W fluorescent ring light and a 3D double-arm boom stand allowing you to point the microscope head in ANY direction desired. The 45 degree inclined trinocular and high-eyepoint design ensures an easy observation for all users including eyeglass wearers. The rubber eyeguards provide further comfort. The 3D double-arm boom stand allows you to turn the microscope head around three different axis (x, y, and z), allowing you to point the microscope head in ANY direction. This microscope offers high resolution, super widefield of view, large magnifying zoom range and long working distance. The fluorescent ring light comes with a ring mounting adapter, providing cool, even and bright illumination. This microscope is an ideal instrument for research labs, gemologists, engravers, collectors and anyone in semiconductor and/or electronics industry.

Features :

  • 3.5X-90X Continuous Zoom Magnification Range
  • Fluorescent Ring Light with Mounting Adapter Included
  • High Resolution with Great Flatness and Contrast
  • Erect Sharp Stereo Images over a SUPER Widefield of View
  • Versatile Boom Stand Covering Large Working Area
  • Double-Arm Design for 3-Degree Freedom
  • Able to Place Microscope Head Toward to Any Directions
  • Accurate Alignment Ensuring Fatigue-Free Long Time Viewing
  • Crystal Clear Original True Color Images
  • 45 Degree Inclined Trinocular Head with SUPER Widefield High-Eyepoint Eyepieces
  • 30mm WF10X/20 SUPER Widefield Eyepieces (see the difference in the above picture)
  • Both Ocular-Tubes with Adjustable Diopter
  • Adjustable Interpupillary Distance
  • Full Optical Glass Elements
  • Precise Ground Glass Lenses
  • 8" Large Working Distance
  • Heavy-Duty Cast Steel Stand Finished with Stain Resistant Enamel
  • Rugged Solid Cast Steel Base
  • All Metal Mechanical Components
  • Rubber Eye-guards Included
  • Manufactured under ISO 9001 Quality Control Standard
  • Excellent Five (5) Year Manufacturer Warranty

Specifications :

  • Head: 45 degree inclined 360 degree swiveling trinocular
  • Eyepiece: 30mm super widefield high-eyepoint WF10X/20
  • Objective: 0.7-4.5X
  • Barlow Lens: 0.5X and 2.0X
  • Zoom Range: 13:1
  • Diopter Adjustment: +/-5dp
  • Interpupillary Distance: 2-3/16" - 2-15/16"(55-75mm)
  • Field of View: 2-1/2" (65mm) in diameter
  • Working Distance: 8" (200mm)
  • Boom Stand: 20" double-arm (overall length: 30"), 17" high pillar, 10-1/4"x8-1/4"x2-0" solid cast steel base

Packing List :

  • One Trinocular Stereo Zoom Head
  • One Pair of SUPER Widefield 10X Eyepieces
  • One SUPER Widefield 0.5X Barlow Lens
  • One SUPER Widefield 2.0X Barlow Lens
  • One Double-Arm Boom Stand with One Focus Rack
  • One Fluorescent Ring Light
  • One Ring Mounting Adapter
  • One Pair of Eye-Guards
  • User's Manual Download
  • Shipping Weight: 65 lbs

Shipping & Handling (Important Shipping Info!)


  • FREE Standard Shipping within the European Union  on orders over 75GBP

Return Policy

We offer 30 days from the date of receipt (verified by tracking information) to request a return on a unit. To do so, please send us a message through eBay member to member messages, with your reason for return, requesting an RMA number.

Note that shipping costs are borne by the customer. Returns requested after 30 days are not valid, and any returns sent without an RMA number will be returned to sender at the sender's expense. Also, please insure all items shipped back, as damage to items by the courier during the return shipment to us are not covered otherwise.

Please keep all original packing materials, as they are required for return (or a 10% restocking fee will be charged). Returned items must be in new/usable condition unless defective on arrival to you.

Warranty Information

We, AmScope, provide all warranty services. Please feel free to contact us whenever you need help by messaging us from the store you purchased the product from.

  • Five Year Warranty for Microscopes - All our microscopes come with a five (5) year factory warranty against manufacturing defects, covering labor and parts.
  • One Year Warranty for Accessories - All our microscope accessories (USB cameras, illuminators, illumination, dust covers, and etc.) come with a one (1) year warranty.

Note: Buyers bear the cost of shipping and handling cost round trip for warranty services. Warranty does not cover consumable accessories and parts such as bulbs.

Warranty service times vary throughout the year, and are processed in a first come, first serve manner, when parts are available and in stock. Most repairs/replacements are done within 1-2 weeks, however if there is a long line during the busy season, or if your parts need to be ordered from our manufacturer, processing times can be up to 6-8 weeks. We appreciate your patience and understand everyone has a critical need for their unit, and do everything we can to ensure that these requests are handled as quickly as possible.

Defective/Missing Items

For defective items or any missing items from your order, please contact us right away to let us know of the issue.

We allow a 30 day period (from the date of receipt of the item in the mail) to report such issues--any items missing after that time frame will need to be purchased, and any defective items will be treated as warranty issues for repair or replacement only (no returns for refund).

For missing items and broken items, we do require a picture of the shipping label on the box, and of the items that arrived with your unit for verification before we can send any missing items or replacements to you.

Return Procedure

To initiate an RMA, please send us a message through the store you purchased it from. Include your order number, reason for return, and if any pictures are required for your claim, please include them also.

From there, we will process within 24-72 hours, and if approved, issue you an RMA number and instructions on where to mail your unit back to. If qualifying for return shipping covered by us (for defective items within 30 days of receipt), your return label may take another 24-48 hours to process and be received in your email inbox.

Follow the issued instructions, and once received, we will process the item in, and check to ensure everything is there. We will contact you when the item is ready for return shipping (if a warranty request), or simply issue your refund with the appropriate deductions (if any) once processed.

Processing is done first come, first serve, and can take between 1-4 weeks to process (depending on how many requests we currently have in queue). We thank you for your patience while we work on your request