---
product_id: 1147486
title: "T490B Compound Trinocular Microscope, 40X-2000X Magnification, Halogen Light, Abbe Condenser, 2-Layer Mechanical Stage, High-Resolution Optics, Awarded No. 6 Among The Top 10 Microscopes 2016"
brand: "amscope"
price: "Bs.12285"
currency: BOB
in_stock: true
reviews_count: 8
category: "Am Scope"
url: https://www.desertcart.bo/products/1147486-t490b-compound-trinocular-microscope-40x-2000x-magnification-halogen-light-abbe
store_origin: BO
region: Bolivia
---

# Simul-focal trinocular port with C-mount adapter 40X-2000X magnification range 3D two-layer mechanical stage with coaxial controls T490B Compound Trinocular Microscope, 40X-2000X Magnification, Halogen Light, Abbe Condenser, 2-Layer Mechanical Stage, High-Resolution Optics, Awarded No. 6 Among The Top 10 Microscopes 2016

**Brand:** amscope
**Price:** Bs.12285
**Availability:** ✅ In Stock

## Summary

> 🔍 Elevate your vision—where precision meets passion in every detail!

## Quick Answers

- **What is this?** T490B Compound Trinocular Microscope, 40X-2000X Magnification, Halogen Light, Abbe Condenser, 2-Layer Mechanical Stage, High-Resolution Optics, Awarded No. 6 Among The Top 10 Microscopes 2016 by amscope
- **How much does it cost?** Bs.12285 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.bo](https://www.desertcart.bo/products/1147486-t490b-compound-trinocular-microscope-40x-2000x-magnification-halogen-light-abbe)

## Best For

- amscope enthusiasts

## Why This Product

- Trusted amscope brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Robust Professional Build:** Solid metal frame and premium optical glass ensure durability and stability for years of high-level lab or educational use.
- • **Simul-Focal Trinocular Head:** Simultaneously view and capture perfectly focused images or videos without refocusing—ideal for presentations and research.
- • **Precision 3D Mechanical Stage:** Effortlessly maneuver slides with smooth, low-position coaxial controls for pinpoint accuracy.
- • **Unmatched Magnification Power:** Explore microscopic worlds from 40X up to a stunning 2000X with crystal-clear optics.
- • **Variable Halogen Illumination:** Adjust brightness seamlessly with a built-in 6V/20W halogen light to reveal every detail in vivid clarity.

## Overview

The AmScope T490B is a professional-grade trinocular compound microscope offering an expansive 40X-2000X magnification range with high-resolution achromatic optics. Featuring a unique simul-focal trinocular head and a 23mm photo port with included C-mount adapter, it enables simultaneous viewing and imaging without refocusing. Its 3D two-layer mechanical stage with coaxial controls ensures precise slide manipulation, complemented by a variable intensity halogen illumination system. Built with a durable metal frame and fully coated optics, this award-winning microscope is perfect for advanced education, clinical labs, and serious hobbyists seeking reliable, high-performance microscopy.

## Description

AmScope T490B 40X-2000X Professional Trinocular Lab Education Biological Compound Microscope with 3D Two-Layer Mechanical StageFrom Manufacture:AmScopeT490B features a unique simul-focal optical system with an adjustable trinocular port to enable well-focused clear images on your computer or video screen while simultaneously obtaining sharp, focused images through the eyepieces. In addition, the T490B's industry standard 23mm photo port can be converted into a C-Mount port by attaching the included C-mount adapter, allowing you to attach most microscope digital cameras and video systems on the market. The T490B includes a 30-degree inclined 360-degree swiveling trinocular Siedentopf head, a 3-D mechanical stage, and an intensity-variable halogen illumination system. This versatile microscope is also capable of being upgraded with various accessories and attachments listed in the optional section for additional functions. It is a perfect laboratory instrument for clinics, Vets, Doctors, and professional students. It arrives brand new in a factory sealed box.Simul-focal Optical SystemMost trinocular microscopes allow you to view either through the trinocular port or the eyepieces only, forcing you to switch between the two. Since these trinocular ports are not simul-focal with the rest of the microscope optical system, you have to re-focus the microscope after each switch. The T490B, however, erases this step by providing simul-focal viewing. Especially handy for teaching demonstrations, clinical examinations and laboratory applications, the simul-focal feature allows your students or colleagues to view clear images simultaneously while you work through the eyepieces.What's In The Box?Trinocular Simul-focal Microscope, Siedentopf Head, 23mm Adjustable, Trinocular Photo Port with C-Mount Adapter, Microscope Body with Frame, Base and Halogen Illumination System, DIN Objectives, 4X, 10X, 40X and 100X, Widefield 10X Eyepieces (Pair), Widefield 20X Eyepieces (Pair), Color Filters, 6V/20W Spare Halogen Bulb, Spare Fuse, Power Cord, Dust Cover, Immersion Oil, Customer Information Sheet (download link included).About MicroscopesMicroscopes are instruments used to enhance the resolution of an object or image. Types include compound, stereo, or digital. Compound microscopes use a compound optical system with an objective lens and an eyepiece. Stereo microscopes show object depth in a three-dimensional image. Digital microscopes are used to display an image on a monitor, rather than looking through a lens. Microscopes can have monocular (one), binocular (two), or trinocular (three) eyepieces, with varying magnification abilities. Magnification ability refers to the size of an image. Resolution, also known as resolvant power, refers to the clarity of the image. The interaction between field of view (FOV), numerical aperture (NA), and working distance (WD) determines resolution. Microscopes can control magnification through a fixed focus, or through a range of adjustments. They can also utilize LED, fluorescent, and mirror light sources to help control viewing capabilities. Microscopes are widely used in education, lab research, biology, metallurgy, engineering, chemistry, manufacturing, and in the medical, forensic science, and veterinary industries. AmScope has been manufacturing microscopy equipment and accessories since 1996, headquartering in Irvine, CA.Features & SpecificationsSimul-focal optical system allows simultaneous viewing through the photo port and eyepieces Adjustable simul-focal trinocular port Industry standard 23mm photo port and c-mount port 30-degree inclined, 360-degree swiveling trinocular Siedentopf head Photo/video capability with adjustable 23mm photo mount for simul-focal image system Large 3D double layer mechanical stage with stain resistant finish Low-position coaxial stage movement control knobs Coaxial coarse & fine focusing with ca knob tension control Fully coated optical system with high resolution Eight magnification settings: 40x-80x-100x-200x-400x-800x-1000x-2000x Upward stage stopper to protect slides and objectives Abbe condenser with iris diaphragm & filters Rack and pinion adjustment for condenser Built-in halogen illumination system with variable intensity Dual focusing control knobs Full optical glass elements Precise ground glass lenses All metal mechanical components. Adjustable interpupillary distance Adjustable diopter on ocular Solid metal frame construction with stain resistant enamel finish CE and GS certified electrical system Nosepiece: quadruple Mechanical tube length: 6-5/16 inch (160mm) Head: 360-degree swiveling trinocular Siedentopf head inclined at 30-degree Eyepieces: wf10x and 20x Achromatic objectives: 4x, 10x, 40x (spring), 100x (spring, oil) Stage dimensions: 5-1/2 inch x 5-1/2 (140x140mm) Stage traveling range: 2-15/16 inch x 1-3/4 inch (75x45mm) Focusing range: 1-3/16 inch (30mm) Division of fine focusing: 0.0000787 inch (0.002mm) Abbe condenser: na=1.25 with rack and pinion focusing control Illumination: 6v/20w halogen bulb Power supply: 110v (220v version available), CE & GS certified Accessories: 6v/20w spare halogen bulb, bottle of immersion oil, blue, green & yellow filters Microscope dimensions: 12 inch x 9 inch x 16 inch Manufactured under ISO 9001 quality control standard Excellent five (5) year factory warranty Compare ProductsT490B ASIN:B004QEFO1QT340B-LED ASIN:B0069WNJS8T660B ASIN:B007RFJ4E4T650C ASIN:B00GGXZOQAT700D ASIN:B008ZH72VUAchromatic✓✓✓Infinity Plan Achromatic✓✓LED✓20W Halogen✓✓✓30W Halogen✓Kohler✓✓✓Widefield✓✓Super/Extreme Widefield✓✓✓

Review: Great microscope, great company! - As a retired high school biology teacher I am indulging in my lifelong passion for interacting with the living world by exploring local pond micro-organisms. Hence, my purchase of this scope. I had, admittedly, an inauspicious start. About 15 minutes into its first use, the illumination system failed. I tried everything - switching to the supplied replacement bulb, testing both bulbs for continuity, replacing the fuse, checking source voltage, etc. It was a serious disappointment! But, hey, stuff happens. The situation quickly improved. I can only say wonderful things about the tech support at AmScope. It was all done by email. My first email got a very quick and courteous response suggesting a few things to check which I did to no avail. Josiah from tech support then immediately sent out a replacement illumination base which installed easily and has functioned perfectly for a number of hours since. Kudos to AmScope support! Now, to the microscope itself. From college through 50 years of teaching I have used microscopes ranging from cheap to very high end. I am impressed with how close a microscope at this price point comes to matching performance of far more expensive instruments. The base, stage, turret, and eyepiece mount are solidly built and stable. There is no vibration in the image when changing focus or moving the slide. All lighting adjustments are easy to perform. The lamp itself has a dimmer control and the substage Abbe condenser moves smoothly. I still have to physically look for the diaphragm adjustment arm on occasion - something I should be able to do by feel, but that's a minor problem. The coarse and fine focus work smoothly with no slippage and no backlash when changing up and down focus. (There is also an adjustment for level of friction in the focusing mechanism.) The moving stage and its controls for x-y axis movement of the slide is a pleasure to use (particularly on swimming protists at higher magnifications!). Movement is smooth and precise on both axes and changing directions is immediate with no slipping at the control knobs. Most important - the optics. There are 4 objectives included (4x, 10x, 40x, and 100x) plus a pair of 10x and 20x eyepieces. I have not used the 100x oil immersion objective since it has limited utility for my purposes. I have made use, however, of the other three objectives with both sets of eyepieces. All combinations show even brightness across the field of view (if substage illumination is correctly set), no focus distortion (coma) at the edge of the field, and no color distortion. In short, excellent optics. Also notable: an object in focus and in the center of view at low magnification appears in the center of view when higher power objectives are moved into place and only minor focus adjustments are necessary at each change. I also cannot comment on the vertical viewing port since I have not attempted photography but look forward to trying it out in the near future. In sum, I'm thrilled that such a good instrument could be had at this low price. Spending more, even a lot more, would only produce diminishing returns.
Review: The best techie man toy ever? - The only difference between men and boys is the price of their toys. In terms of bang for the buck, this may be the best techie man toy ever. PROS Impressive presentation. It's huge, at 14-1/2 inches tall without a camera and almost 20 inches tall with a compact digital camera on the trinocular port. It would be a little taller with an SLR/DSLR camera. Well constructed with a really solid feel to the whole thing. Knobs that move, such as the focusing knobs, the condenser positioning knob, and the stage positioning knobs, all move smoothly. The optics are quite good. Achromatic (and not planar), obviously, at this price point. But certainly good enough for students and hobbyists like me. This is no toy in the cheap sense of the word. This is a serious instrument. Overall, a great value at the $380 I paid this T490B-DK kit. (Which is the T490B microscope bundled with its optional DK-DRY100 darkfield condenser). I recommend you save yourself $90 by buying the T490B without the darkfield condenser. You can add the condenser at any time. EDUCATION Ideal for homeschooling. As an 8-10 year old child circa 1950, I was given a cheap chemistry set and a toy microscope. I was never able to do anything with the chemistry set and the microscope was a useless piece of junk. Great idea. Encourage your kids to develop an interest in science by giving them scientific toys that do nothing but frustrate them. If you're lucky enough to have a child who's interested in science, the smartest thing you can do for them would be to buy them this microscope and a few (2-4) boxes of prepared slides. The benefit is not just the "discovery adventure" from getting really good views of really small things. You put your child down in front of a device of this size and sophistication and the message to the child is clear: "I am taking both you and your educations seriously. Very seriously." And it will also entertain you and impress your friends. CONS (remarkably few, and they're nits) The user's guide is lame, to put it charitably. The good news: what little assembly is required is reasonably obvious after looking at the pictures and I had no real trouble cobbling it together. If you do have any questions, AmScope has really good phone and website chat support. The eyepieces have limited eye relief. So, if you wear glasses, you might have an issue. I'm extremely nearsighted, but I just take my glasses off and let the microscope's focusing optics compensate for my vision. If that isn't going to work for you, meaning you will have to wear your glasses, your eyes will be too far from the eyepieces to see the entire image at one time. I.e., you'll need to move your head around to scan the entire image. (The eye relief is the maximum distance your eye can be from the eyepiece and still see the entire image the device is forming.) ASSEMBLY SUGGESTION There is an opening in the top of the binocular head for the camera mount tube. This opening has a plug in it you remove to install the tube. But there is no plug for the tube itself. So, if you don't have a camera to go on the tube, don't install the tube at this time or you'll just have a path for dust to enter the binocular head. DARKFIELD MICROSCOPY Darkfield microscopy is really cool stuff. If this topic is new to you (as it was to me), now would be a good time to check out the Wikipedia article. Although I purchased the darkfield condenser with this microscope, I haven't had much experience with it yet. Darkfield is really intended for use with unstained specimens, and as I only have prepared slides all of my specimens have been stained. The darkfield views I'm getting are pretty dim, and my guess is that the stain is absorbing much of the light that would otherwise be scattered by the unstained specimens. I don't know how this will work out in the long run, but if I learn anything interesting I'll update this review. BOTTOM LINE Great bang for the buck. Really cool man toy. Wonderful child educational tool. Highly Recommended !

## Features

- 40X-2000X eight widefield magnification settings
- Simul-focal trinocular head boasting unique features
- 23mm photo port for adding photo/video capability
- C-mount adapter included
- 3D two-layer mechanical stage with low position control

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004QEFO1Q |
| Best Sellers Rank | #1,396 in Camera & Photo Products ( See Top 100 in Camera & Photo Products ) #12 in Lab Compound Trinocular Microscopes |
| Customer Reviews | 4.3 4.3 out of 5 stars (321) |
| Date First Available | March 3, 2011 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 17.75 pounds |
| Item model number | T490B |
| Manufacturer | United Scope LLC. |
| Product Dimensions | 20 x 17 x 10.5 inches |

## Product Details

- **Brand:** AmScope
- **Color:** White
- **Item Weight:** 8.07 Kilograms
- **Light Source Type:** Halogen
- **Magnification Maximum:** 2000 x
- **Material:** Metal
- **Objective Lens Description:** Achromatic
- **Product Dimensions:** 20"L x 17"W x 10.5"H
- **Real Angle of View:** 30 Degrees
- **Voltage:** 220 Volts

## Images

![T490B Compound Trinocular Microscope, 40X-2000X Magnification, Halogen Light, Abbe Condenser, 2-Layer Mechanical Stage, High-Resolution Optics, Awarded No. 6 Among The Top 10 Microscopes 2016 - Image 1](https://m.media-amazon.com/images/I/61hsZ81p48L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great microscope, great company!
*by J***C on September 12, 2017*

As a retired high school biology teacher I am indulging in my lifelong passion for interacting with the living world by exploring local pond micro-organisms. Hence, my purchase of this scope. I had, admittedly, an inauspicious start. About 15 minutes into its first use, the illumination system failed. I tried everything - switching to the supplied replacement bulb, testing both bulbs for continuity, replacing the fuse, checking source voltage, etc. It was a serious disappointment! But, hey, stuff happens. The situation quickly improved. I can only say wonderful things about the tech support at AmScope. It was all done by email. My first email got a very quick and courteous response suggesting a few things to check which I did to no avail. Josiah from tech support then immediately sent out a replacement illumination base which installed easily and has functioned perfectly for a number of hours since. Kudos to AmScope support! Now, to the microscope itself. From college through 50 years of teaching I have used microscopes ranging from cheap to very high end. I am impressed with how close a microscope at this price point comes to matching performance of far more expensive instruments. The base, stage, turret, and eyepiece mount are solidly built and stable. There is no vibration in the image when changing focus or moving the slide. All lighting adjustments are easy to perform. The lamp itself has a dimmer control and the substage Abbe condenser moves smoothly. I still have to physically look for the diaphragm adjustment arm on occasion - something I should be able to do by feel, but that's a minor problem. The coarse and fine focus work smoothly with no slippage and no backlash when changing up and down focus. (There is also an adjustment for level of friction in the focusing mechanism.) The moving stage and its controls for x-y axis movement of the slide is a pleasure to use (particularly on swimming protists at higher magnifications!). Movement is smooth and precise on both axes and changing directions is immediate with no slipping at the control knobs. Most important - the optics. There are 4 objectives included (4x, 10x, 40x, and 100x) plus a pair of 10x and 20x eyepieces. I have not used the 100x oil immersion objective since it has limited utility for my purposes. I have made use, however, of the other three objectives with both sets of eyepieces. All combinations show even brightness across the field of view (if substage illumination is correctly set), no focus distortion (coma) at the edge of the field, and no color distortion. In short, excellent optics. Also notable: an object in focus and in the center of view at low magnification appears in the center of view when higher power objectives are moved into place and only minor focus adjustments are necessary at each change. I also cannot comment on the vertical viewing port since I have not attempted photography but look forward to trying it out in the near future. In sum, I'm thrilled that such a good instrument could be had at this low price. Spending more, even a lot more, would only produce diminishing returns.

### ⭐⭐⭐⭐⭐ The best techie man toy ever?
*by I***T on November 5, 2013*

The only difference between men and boys is the price of their toys. In terms of bang for the buck, this may be the best techie man toy ever. PROS Impressive presentation. It's huge, at 14-1/2 inches tall without a camera and almost 20 inches tall with a compact digital camera on the trinocular port. It would be a little taller with an SLR/DSLR camera. Well constructed with a really solid feel to the whole thing. Knobs that move, such as the focusing knobs, the condenser positioning knob, and the stage positioning knobs, all move smoothly. The optics are quite good. Achromatic (and not planar), obviously, at this price point. But certainly good enough for students and hobbyists like me. This is no toy in the cheap sense of the word. This is a serious instrument. Overall, a great value at the $380 I paid this T490B-DK kit. (Which is the T490B microscope bundled with its optional DK-DRY100 darkfield condenser). I recommend you save yourself $90 by buying the T490B without the darkfield condenser. You can add the condenser at any time. EDUCATION Ideal for homeschooling. As an 8-10 year old child circa 1950, I was given a cheap chemistry set and a toy microscope. I was never able to do anything with the chemistry set and the microscope was a useless piece of junk. Great idea. Encourage your kids to develop an interest in science by giving them scientific toys that do nothing but frustrate them. If you're lucky enough to have a child who's interested in science, the smartest thing you can do for them would be to buy them this microscope and a few (2-4) boxes of prepared slides. The benefit is not just the "discovery adventure" from getting really good views of really small things. You put your child down in front of a device of this size and sophistication and the message to the child is clear: "I am taking both you and your educations seriously. Very seriously." And it will also entertain you and impress your friends. CONS (remarkably few, and they're nits) The user's guide is lame, to put it charitably. The good news: what little assembly is required is reasonably obvious after looking at the pictures and I had no real trouble cobbling it together. If you do have any questions, AmScope has really good phone and website chat support. The eyepieces have limited eye relief. So, if you wear glasses, you might have an issue. I'm extremely nearsighted, but I just take my glasses off and let the microscope's focusing optics compensate for my vision. If that isn't going to work for you, meaning you will have to wear your glasses, your eyes will be too far from the eyepieces to see the entire image at one time. I.e., you'll need to move your head around to scan the entire image. (The eye relief is the maximum distance your eye can be from the eyepiece and still see the entire image the device is forming.) ASSEMBLY SUGGESTION There is an opening in the top of the binocular head for the camera mount tube. This opening has a plug in it you remove to install the tube. But there is no plug for the tube itself. So, if you don't have a camera to go on the tube, don't install the tube at this time or you'll just have a path for dust to enter the binocular head. DARKFIELD MICROSCOPY Darkfield microscopy is really cool stuff. If this topic is new to you (as it was to me), now would be a good time to check out the Wikipedia article. Although I purchased the darkfield condenser with this microscope, I haven't had much experience with it yet. Darkfield is really intended for use with unstained specimens, and as I only have prepared slides all of my specimens have been stained. The darkfield views I'm getting are pretty dim, and my guess is that the stain is absorbing much of the light that would otherwise be scattered by the unstained specimens. I don't know how this will work out in the long run, but if I learn anything interesting I'll update this review. BOTTOM LINE Great bang for the buck. Really cool man toy. Wonderful child educational tool. Highly Recommended !

### ⭐⭐⭐⭐⭐ Great Photos With This Trinocular
*by C***Y on May 26, 2018*

Great scope! I also bought the Omax 9mp camera to use with it (through my Mac laptop and supplied Troup Lite app) and I'm getting some terrific photos. It's a waste of money buying a higher res camera for this work. Originally I was going to buy a special photo eyepiece for my Canon SLR, but I'm glad I went the way I did. Anyway...I'm going to put an LED lamp in place of the halogen (which gets hot, and will dry your wet samples). I've been using two gooseneck LED lights to include top lighting (like with a dissecting microscope)...getting really nice photos with three-dimensionality this way. Great scope for the money, and works as well as my old Olympus (which cost 6k at the time). I particularly enjoy the the Siedentoph head, much easier to get real binocular image with this than with the Omax scope I had to return (because of this issue). It's nice that quality scopes are so affordable these days. p.s....I'm going to get a 60x objective to use in place of the supplied 100x oil immersion objective. Sharing my photo of Black Oak pollen, apx diameter is 0.04mm (used sub-stage halogen and two top LED sources (one on each side) can vary illum output of each to enhance 3D effect). My three-way cheapo gooseneck LED lights are better than the single brightness unit I never use now. Hope this helps.

## Frequently Bought Together

- AmScope T490B Compound Trinocular Microscope, 40X-2000X Magnification, Halogen Light, Abbe Condenser, 2-Layer Mechanical Stage, High-Resolution Optics, Awarded No. 6 Among The Top 10 Microscopes 2016
- AmScope BS-50P-100S-22 Pre-Cleaned Blank Ground Edge Glass Microscope Slides and 100pc Pre-Cleaned Square Glass Cover Slips Coverslips
- AmScope Microscope Slide Preparation Kit Including Slides, Stains

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*Product available on Desertcart Bolivia*
*Store origin: BO*
*Last updated: 2026-02-25*