AmScope SM-4TZ-144A Professional Trinocular Stereo Zoom Microscope, WH10x Eyepieces, 3.5X-90X Magnification, 0.7X-4.5X Zoom Objective, Four-Zone LED Ring Light, Double-Arm Boom Stand, 110V-240V

I purchased this for my hobbies in geology and archaeology and it has been outstanding - with a couple of caveats. This microscope has no stage, and many of my specimens are too small to see without raising them to the lens, so I had to solve for a workable stage that I could set rocks and other hard sharp objects on. I ended up using a small laboratory jack (Sold on Amazon as well) for the stage allowing me to put a specimen on it and raise it to the approximate required level, and then using the microscope for the final adjustments. This has worked out perfectly. I read about the horizontal rails on a similar model becoming pitted due to being undersized for the bearings rolling against them. With this in mind, I always carefully apply upward force to the heavy end before rolling it and have seen no pitting. No sense taking any chances - I want this microscope to last. The lens are perfect for my hobbies, and the ability to zoom is especially useful. The light source is really useful as well - it is bright and you can adjust the direction of the light by turning off some of the LEDs. The unit is incredibly big and heavy - I didn't realize just how big and heavy until I assembled it and then decided to move it. It was too long to fit in the appointed spot in my lab, but luckily because it will turn every which way, I ended up sitting it up sideways instead of longways and it works fine. You will have no problem with the unit accidentally moving (unless of course the table its on collapses!) as it is very heavy. I purchased this unit with the idea of someday attaching a camera, but have not done so as yet so I can't speak to that function. Movements are all smooth and have a professional feel to them. Overall this has been a wonderful purchase with one small hitch... You must assemble the unit from several parts - and the manual that came with my unit did not apply to the microscope I purchased. Weird. Most of the assembly was straight forward and being a man (I hate to ask for help) I finally figured out the few odd attachments you must make. Overall it was a fun puzzle to solve, but most people would likely prefer to either receive the correct assembly instructions or look them up online. It took about 30 minutes to assemble (and most of that was scratching my head over 1 part).

The scope works as good as some of the ones I used in the Entomology lab at University of Florida and better than most of the student scopes. The base is solid providing stability and the swing arm allows easy access while easily moving out of the way. The LED light ring I bought with it has been more than capable to adjust to multiple insect sizes. Its adjustability provides a wide range of bright to dimmer light for small translucent wings or hard dark beetle shells I need to count pits on for identification. I use it for insects ID in the 2 mm size and up. I will be ordering a wall mount swing arm in the near future for my new office, but this scope and stand are better than I expected for the price after years of use.

I could not be happier with this scope. It’s a luxury compared to using a loupe to do watch services. I actually enjoy using it. It’s well made and packaged and DID come with a QR code for all the instructions you need. This is a US based company and the instructions are well laid out in PERFECT English. I can completely work under it and haven’t had any problems so far. For the money, I would happily take the Pepsi challenge against more expensive microscopes, confident it would win. You cannot go wrong purchasing this. It obvious Amscope know what’s it’s doing and I wouldn’t hesitate purchasing other products from them. Yeah, it’s that good.

I didn't realize how nice a microscope you could get for so little money. This unit does not feel flimsy. The base is HEAVY, and very hard to tip. There are lots of adjustments. You can move the head in any direction, including pointing it sideways. It's reasonably easy to slide around. Optically, it seems to be great. I haven't used a $5k top brand microscope, so I can't be sure that they aren't better. But this one is extremely useful. The only optical quality complaints I've got are that you need to keep your head in just the right position. Move your head much and you can't see anything. Also, when you're zooming in the depth of field is extremely shallow. Only the top of a surface mount resistor is in focus! The bottom of it is blurry. (I know that this is a very common characteristic of optical assemblies; maybe the more expensive ones are just like this too...) The "3.5x to 90x zoom" is perhaps a bit misleading. The zoom control goes from 0.7 to 4.5, and the eyepieces are 10x. That means that you get 7x to 45x. In addition, there are front add-on lenses in the box, 0.5x and 2x. With the 0.5x you get 3.5x to 22.5x, and with the 2x you get 14x to 90x. You can't actually get 3.5x to 90x without unscrewing one of those lenses, and removing the LED light assembly and re-attaching it. I haven't used the trinocular port with a camera yet. You need some sort of adaptor with optics for that to work. Also, there is a slider to switch between the trinocular port and the left eyepiece. You lose the left eye when you use the camera. The LED control box works. It's not top quality, the text is low quality silk screen, but the buttons feel solid and have a good click when you press them. Overall, I'm happy with this microscope. I can't compare it to any other because I really haven't used any others. But my soldering is now much better than it used to be. I can examine each solder joint carefully and see what it looks like.

This is one of those products that you kick yourself for not getting it sooner. The price was great. It's a very well thought through design. And it's manufactured incredibly rugged. Arrived 48hrs after ordering and took about 30-minutes to assemble. The image is excellent. The LED light ring gives great illumination and the variable brightness is smooth fading. The base is very heavy so it never feels unsteady or off-balance, even with the arm fully extended. There are reviews online about the steel in the arms being mild instead of hard tool steel. For now, these are fine. I may upgrade that later - but if I do I doubt it will be because it needs it rather because I really love this and want to trick it out completely.

I have used several different stereoscopes from different makers over the last 30 years to do repair and modification work on micro electronics. Most of the brands have been significantly more expensive than this was. I must say, I find the optics and durability of this scope to be on par with instruments costing multiples more than these. Although it would be nice for those unfamiliar with these to have received assembly instructions, being experienced with these instruments, I had little trouble. Aside from that, I am extremely pleased with the quality of this instrument for the price.

Insane value!!!! Love the 4 way LED light (Super super useful feature). I would not buy without that. Optics perfect. Razer sharp and clean. No diffraction of light. Only issue is when you zoom, you have to refocus and also tweak one of the 2 eye diaopters. I think this has to due with CCD/Cmos access port. Small inconvenience considering how this is built. After a few tries I don't think about it. You can move all the controls without looking. Another huge plus is that you can position the scope in any conceivable direction. The base is also soooo heavy!!!!!! Rock stable even pulled out all the way.

After working with this microscope for just 1 day some initial comments. Very good packaging, unit arrived in excellent condition. The working distance with the 2x objective is very short, at 1x and 0.5x it is good. There's not much room if you expect to be manipulating or working on the subject with the 2x lens in place. The LED ring light is just ok. It seems to have some flicker. I haven't tried it with a camera to see if there's an issue with video. The base shown in the first picture is not what is shipped. See the assembly video, or the customer pictures to see the actual base.

To start, I think the instructions really suck but, it's not rocket science so I was able to figure everything out. Shipping (Intelcom Express) was terrible, like usual, and the box came smashed up. I was really concerned but luckily the microscope was packed very well. The boom is solid and is a great complement to the microscope. The LED light ring is an absolute must have. The microscope itself is well constructed and is very impressive. Overall, I'm extremely happy with this.

Das Mikroskop ansich ist super und auch mit der Kamera gut zu nutzen. Eine parralle Nutzung von Kamera und den Okularen ist nicht möglich da bei Nutzung der Kamera durch einen Mechanismus das linke Okular abgeschaltet wird. Dafür ist aber die Ausleuchtung absolut top. Lediglich der billige Plastikadapterring für die Montierung der LED's ist dermaßen schlecht dass bei leichten anstoßen direkt der LED Ring abfällt. Hier empfielt sich der Kauf eines Adapterrings aus Alu oder ähnlichem. Damit hält es super.

Better than expected great finish and function.

he tenido varios microscopio y este es de lo mejor ,este es un microscopio trinocular para toda la vida,se lo dejare de herencia a mis nietos.

Très content de mon achat matériel robuste et de bonne qualité