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The AmScope SM-3T is a professional trinocular stereo zoom microscope offering a versatile 7x-45x magnification range with a 0.7x-4.5x zoom objective. Designed for demanding tasks like watchmaking and circuit board inspection, it features a 45° inclined, rotatable trinocular head with super-widefield 10x eyepieces for ergonomic viewing. Its single-arm boom stand provides extensive maneuverability with an 8" vertical and 16" horizontal working distance, while ambient lighting ensures clear specimen illumination without power dependency. Ideal for professionals seeking precision, comfort, and seamless documentation capabilities.






| ASIN | B004U48OZA |
| Best Sellers Rank | #905 in Camera & Photo Products ( See Top 100 in Camera & Photo Products ) #15 in Lab Stereo Microscopes |
| Brand | AmScope |
| Built-In Media | Stereo microscope, boom stand |
| Color | White |
| Compatible Devices | Personal Computer, Laptop, Tablet |
| Customer Reviews | 4.3 out of 5 stars 95 Reviews |
| Global Trade Identification Number | 00013964500011 |
| Item Dimensions L x W x H | 19.8"L x 19"W x 17.5"H |
| Item Weight | 19.21 Kilograms |
| Light Source Type | LED |
| Magnification Maximum | 45 x |
| Manufacturer | United Scope LLC. |
| Manufacturer Part Number | SM-3T |
| Model Name | SM-3T |
| Model Number | SM-3T |
| Objective Lens Description | 0.7-4.5X |
| Power Source | Battery Powered |
| Product Dimensions | 19.8"L x 19"W x 17.5"H |
| Real Angle Of View | 45 Degrees |
| Real Angle of View | 45 Degrees |
| UPC | 013964500011 |
| Unit Count | 1.0 Count |
| Voltage | 240 Volts |
| Warranty Description | 5 Year Warranty |
A**R
Great for Watchmakers
Added a camera that records photos or video. It also plugs into my 42” TV for inspections Best tool on my bench.
J**H
Gamechanger
This microscope instantly elevated my ability to fix watches, its amazing what you can accomplish if you can see what you're doing. The microscope arrived well packaged and was not too challenging to set up, and it pretty simple to use. The image is very clear and easy to focus if changing zoom levels or working distances. I did purchase the reducing lens to give myself more room to work under the microscope, and I also purchased the LED light ring. All told, for approximately $500 you get a very capable microscope that will help you perform any task in watch making. For example, prior to buying this, I couldn't lubricate and replace a cap jewel to same my life, I must have ruined a dozen watches just because the cap jewel would fly away simply because my loupe didn't give me the vision required. Since buying the microscope, I haven't lost a cap jewel yet. If youre serious about watchmaking, this microscope will make your experience 100% better.
D**L
Excellent!
I use this microscope for watchmaking. It is absolutely perfect. In fact, it's an actual Game Changer for watchmaking. I can't believe I ever did this with only a loupe. A few tips for a new user: The microscope is incredibly easy to set up and fully adjustable. If you adjust it correctly, it can safely hang over the edge of your desk so you can sit fully upright in a comfortable chair while working. This would be the same for circuit boards, jewelry making or anything else where the space permits. For watchmaking, the 0.5 Barlow lens is critical since you need the space to work underneath the microscope. Also, my preference is NOT to sit directly above my items. Remember you have binocular vision with depth of field so if you're directly on top you can't work well. Angle the microscope a bit pointing 70-80 degrees instead of direct 90 depending on your preference. Pro Tip: Adjust the eyepieces all the way to their 'default' or 'original' point screwed clockwise. Now adjust the zoom to MINIMUM. Then adjust the main knob that says 'Tension' on it to be level top and bottom or in the 'center' of the mechanism's adjustment threshold, i.e. not all the way up or down, but in the middle. This is default ZERO stop. Now adjust the whole assembly's boom arm up or down until A.) you are sitting upright and comfortable and B.) you are closely or almost focused on an object sitting at work height. Now, and only now should you adjust your eyepieces to get the focus crisp and correct since you will not be able to focus fully by adjusting the boom (movements will be far too coarse!). Remember eyepieces should be adjusted for each eye individually with one eye closed at a time. Are you in focus? Okay, now zoom all the way in on your work piece at MAX magnification. Now adjust the Tension knob (the big one) to make focus crystal clear at MAX mag. Now use the zoom knob to zoom out all the way. You should still be in focus. In this way you can zoom in and out with very little adjustment IF your workpiece remains at the same working height. In other words, you should only be using the magnification knob most of the time, with fine adjustments for objects at varying heights on the table or workspace. Lastly, get a ring light, a great desk light as well that is moveable and a camera. Enjoy. I can't believe we live in a time where a microscope like this is sub $10,000. Amazing time to be alive.
A**R
AmScope not helpful
The microscope arrived on time. There was no damage to the box. As I unpacked the contents, I found that one of the 10x eyepieces was missing. I contacted customer support at Amscope and was shunted off to many different departments. The final one was out of the country. The implications by that agent were that it was my fault somehow. I then contacted Amazon and got a return. I am now repackaging the box and will drive 10 miles to the return center. I have left messages and callback numbers from Amscope, and so far no help.
W**S
A complete set up
I purchased this microscope based on a review on another channel. The reviewer purchased this microscope, along with a .5X Barlow lens, an LED ring light for illumination and a digital camera. I purchased the same items as he, to duplicate his setup. After setting up the microscope, I had several small boxes left over. Opening one was an LED ring light. Another small box had a .5X Barlow lens, and another had a 2X Barlow lens. The final box had a camera, complete with a power supply, camera adapter and a USB cable. I returned all the light, lens and camera. The box also contained a plastic cover for the whole setup. None of these extra items were in the description, so I was pleasantly surprised. 5 stars and a big thumbs up.
R**N
Great for Watch Repair
It's as much as you need for close up work. Game changer. Have already recommended it to a couple of friends.
P**G
Great for electronics work.
A decent scope - especially combined with a camera. I used an EOS M with an EF-M mount printed from thingiverse combined with the trinocular port for imaging. There was casting and manufacturing dust in several areas I had to clean out however. The images are clear - but the stand could use improvement. The knobs in particular seem udnersized - but larger knobs might cause the tapped castings to strip out as well. Great for electronics work when combined with a 0.5X barlow for more working space.
H**1
Very easy to use and has a very good image!
I really like the ease of use and the image quality. I use a 0.5X Barlow lens and my workspace opened up quite a bit. Everything was packaged well and easy to setup. I don't like that you lose the left eye when you enable the camera function. The push pull rod for the camera view takes away the left eye when in the camera position. You can still use the right eye with the camera, but you will not be looking in stereo. Aside from that, it is great!
O**E
Buena calidad en general.
Calidad aceptable, pero tiene varios detalles que hay que considerar y seguramente están relacionados con su precio. 1) El detalle más importante es que los tornillos del brazo horizontal no fijan la barra y el microscopio inevitablemente gira. Lo solucioné al revisar internamente la pieza y notar que le falta una lámina que es la que presiona el tornillo para fijar el brazo. Le comparto mi solución: utilicé una lámina para calibrar bujías de auto, menor a 0.010, para cada tornillo del brazo y listo! 2) El tornillo de enfoque no es preciso y tarda uno bastante para lograr una nitidez aceptable. 3) El cubre objetivo de los lentes inferiores no enrrosca bien y se cae. Por lo demás funciona aceptablemente, yo lo uso para obtener microfotografías de rocas y minerales. Tal vez sea también útil para relojería. Lo voy a probar.
E**L
Microscopio adaptable y fácil de usar
Me gusta la movilidad que tiene, yo lo utilizo para el estudio de documentos, y se le ha podido adaptar perfectamente la cámara de otro microscopio -estereoscopio que tenía. Tiene una especie de aguja que sirve para visionarlo por los oculares o a través de la pantalla del PC si se le incorpora una cámara de video. No me ha gustado que no tenga instrucciones en castellano, ya que he tenido que ponerme en contacto con el fabricante para poderlo tener a punto. Hay que realizar algunos ajustes al equipo. En general cumple las expectativas.
T**E
Perfect for Watch Repair! :) 5 STARS!
Hello! So i have been looking through "the jungle" for my purpose: Watch Repair. I am studying to Watchmaker and this was exactly what i was looking for. The package came quickly to Sweden (3 days!) The package does not include any instruction but that is not a problem because there are not many parts and by the photo of the Microscope you can see how the Microscope is built. I think there should be an integrated light with this one because of the price but its not a problem just remember to buy some light for your workshop. It will help alot! Shipping was quick! I am satisfied with this product and i can recommend it to others! If you want, you can buy a camera and attach it like i did. It is perfect! I don't regret buying this because i am using it every day! Thank You!
P**A
Ottimo acquisto
Ottimo acquisto
P**E
Good product
It is a bit of a learning curve at 1st. I use in my watch repair and it makes a huge difference
Trustpilot
5 days ago
4 days ago