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AmScope

AmScope B490B Compound Binocular Microscope, WF10x and WF20x Eyepieces, 40X-2000X Magnification, Brightfield, Halogen Illumination, Abbe Condenser, Double-Layer Mechanical Stage, Sliding Head, High-Resolution Optics, Anti-Mold , White

    • Based on 130 reviews
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Availability: 19 left in stock
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Arrives Monday, Nov 25
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Features

  • Eight Widefield Magnification Settings 40X-2000X
  • Abbe Condenser with Iris Diaphragm
  • 3D Double Layer Mechanical Stage
  • Heavy -Duty Sturdy Metal Framework
  • Tension Adjustable Coarse & Fine Focus
  • Eight Widefield Magnification Settings 40X-2000X
  • Abbe Condenser with Iris Diaphragm
  • 3D Double Layer Mechanical Stage
  • Heavy -Duty Sturdy Metal Framework
  • Tension Adjustable Coarse & Fine Focus

Description

AmScope B490B 40X-2000X Doctor Medical Office Vet Laboratory Biological Binocular Compound Microscope with Full-Size 3D Double Layer Mechanical Stage Lorem ipsum dolor sit Lorem ipsum dolor sit From ManufactureAmScope B490B high power compound microscope is designed for professional applications in clinical offices and research laboratories. This microscope comes with a 30 degree inclined 360 degree swiveling binocular compensation-free head, 3D mechanical stage, coaxial coarse fine focusing system, intensity-variable halogen illumination, and bright field condenser. It gives eight level magnifications: 40x-80x-100x-200x-400x-800x-1000x-2000x. It is a right instrument for clinical or research applications that need both phase contrast and bright field features. It is brand new in factory sealed box.Precise Optics & Sturdy FrameworkAmScope B490B microscope comes with fully coated optical system, DIN Achromatic objectives, precise ground glass lenses as well as all glass optical elements that ensure high resolution crystal clear sharp images. The microscope has a sturdy solid metal framework with stain resistant enamel finish, a large 3D double layer mechanical stage with low position coaxial controls, coaxial coarse fine focusing system, and all metal mechanical parts. The microscope comes with excellent five (5) year factory warranty.What's in the Box?Binocular compensation-free head, Microscope body with frame and base, High quality DIN objectives, 4x, 10x, 40x and 100x, Widefield 10x eyepieces (pair), Widefield 20x eyepieces (pair), 6V/20W spare halogen bulb, Color filters, Spare fuse, Power cord, Dust cover, Immersion oil, User's manual, Dimensions: 12 inch x 9 inch x 16inch, Shipping weight: 20 lbs.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 & SpecificationsA great affordable professional microscopy system 30 degree inclined 360 degree swiveling compensation-free binocular head 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 Crystal clear sharp images High quality professional grade microscope Perfect for clinics, vets, doctors and medical school students Eight settings of magnification: 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 Focusing control knobs on both sides. Four DIN Achromatic objectives included Two sets of eyepiece included Full optical glass elements Precise ground glass lenses Adjustable interpupillary distance Adjustable diopters on both oculars Full solid metal frame construction with stain resistant enamel finish Nosepiece: quadruple Mechanical tube length: 6-5/16 inch (160mm) Head: binocular anti-mould viewing head inclined at 30 degree Widefield eyepiece: WF10x and WF20x Full coated achromatic objective: 4x, 10x, 40x (spring), 100x (spring, oil) Stage dimension: 5-1/2 inch x 5-1/2 inch (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 certified Spare bulb, fuse and immersion oil included Manufactured under restrict ISO 9001 quality control standards Compare ProductsB490B B004UI5QT8T680A B004TEKZHGB340A-DK-LED B007MTO7IIT600A-PCS-3M B007LBGR5ST650B B00GGXZJR4Binocular✓✓Trinocular✓✓✓Darkfield✓✓Phase Contrast✓Kohler✓✓LED Illumination✓Halogen Illumination✓✓✓✓Super Widefield✓


Light Source Type: Halogen


Material: Metal


Color: White


Item Dimensions LxWxH: 20 x 17 x 10.5 inches


Real Angle of View: 30 Degrees


Magnification Maximum: 2000 x


Item Weight: 17.2 Pounds


Voltage: 240 Volts


Brand: AmScope


Objective Lens Description: Achromatic


Product Dimensions: 20 x 17 x 10.5 inches


Item Weight: 17.2 pounds


Item model number: B490B


Is Discontinued By Manufacturer: No


Date First Available: March 2, 2011


Manufacturer: United Scope LLC


Country of Origin: China


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Nov 25

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

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Top Amazon Reviews

    • Expert review for the amatuer; worth the cost, and maybe more.
The media could not be loaded. I'll start off by saying that I am a government microbiologist and have experience working with the most expensive microscopes that exist, including darkfield, phase contrast, and more, for clinical bacteriology, histology (tissues), and parasitology. I have also had to use some of the worst available in the field, so have a range of experience. After researching many of the scopes in this price range with similar characteristics, I can say this is definitely worth the money for most non-professional uses. In fact, pairwise comparisons (I brought it into our lab and literally did side-by-side comparisons) demonstrate that out of the box it performs almost as good as our $10K scopes; however there are caveats (see below). First, I need to make it clear that I was looking specifically for a 2000x, dual eyepiece stereo compound scope, without a trinocular or any other accessories. I went with halogen light, for many reasons I won't go into (do NOT buy LED), and not the PLAN objective scope. I didn't evaluate any other options, although in retrospect I wish I had gotten the "teaching" version with the trinocular so a second person can see what I do. So, these scopes are not PLAN (you can Wiki it), so the focused field of view will be about 60% instead of 90% with PLAN, but the image quality of what is in focus is identical. If you plan to look at a lot of large tissues, PLAN may be the way to go, but it's almost twice the cost. For looking at cells, I don't even notice a difference. Some positive things; 1) objectives have give, reducing possibility of breaking slides for inexperienced users; 2) locking mechanism for the deck is nice for the same reason, although I think it is a bit hard to use; 3) for the most part, seems fairly sturdy- not like it will last rough handling or 20 years of use (specifically, the fine focus tends to have some fallback even if you tighten the focus lock, although I generally am constantly refocusing so don't notice much), but that you will get a lot of use out of it if you are careful and keep it covered; 4) easy to assemble- just screw in the objectives. Some cons; 1) fine focus loose as mentioned above- could be unique to my scope as others haven't mentioned this; 2) deck seems to be a bit rough going up and down, not really sure why but its functional; 3) you can't see anything on the far right side of the slide because the hole in the deck was designed far too large- but again, if you use just the center of the slide should be fine; 4) the eyepieces fall out way too easily, although this is more of a habit thing (why are you tilting the scope?); 5) (and this is the big one) I've noticed that over a bit of time I'm getting some dust/spotting through the top two objectives and I can't seem to clean it- I clean after every use and keep it covered, so I can't really tell where this is coming from- I would open the top and clean the interior but I really hate to do that without instructions from the company on how to clean it, as you never know how they manufactured the inside and most people do not have proper cleaning equipment. Overall, the other lab members were unable to tell the difference between our big scopes and this one, other than the reduced field of view- which is impressive. For me, the pros so far vastly outweigh the cons, as they are more annoying than functionally deficient and the pros are unexpected delights for a scope this cheap. Recommendations: if you don't want to spend more than $800-1000, this is your scope (unless you want to add the variations like trinocular). The PLAN objective and phase contrast options I'm sure are great, but the vast majority of people really don't need this unless they have an extra 400 bucks laying around on top of this cost. The company was extremely helpful when I called them to ask various questions about their scopes, and even though the guy sounded young he clearly knew what he was talking about. I'll try contacting them about cleaning soon (still sort of surprised they didn't have a manual with that in it). Stay AWAY from all digital cameras offered through these sites; their software is dicey at best, they cost way more than they should and some normal digital cameras with a cheap scope adaptor will suit you just fine. Bottom line, there are some minor issues but I'm really happy with the scope and amazed at how it performs for the cost. Hope this was helpful. The attached video is with a $100 handheld cam (sorry about the shifting), with no stain, at only 400x. I have better pictures at 2000x but am limited to posting videos. ... show more
Reviewed in the United States on August 13, 2013 by Kindle Customer
    • Great for cell phone pics
Review Image by mgr mgr
Although direct visualization through this microscope is not good enough to make pathology diagnoses, pictures taken with a cell phone are quite good. For comparison of photomicrograph image quality, I would rank as follows: 1) professional grade microscope with professional grade camera, 2) AmScope B490B microscope with cell phone camera, 3) professional grade microscope with cell phone camera. ... show more
Reviewed in the United States on March 26, 2023 by mgr mgr
    • This microscope is a very good value.
Review Image by Ross Payne Ross Payne
I have used various light microscopes in academic and research settings for 45 years. Now that I am retired, I needed a low cost microscope to quantitate parasite eggs in goat feces at about 100x magnification. A $55 toy microscope might work well enough for this but I did not think that I would be satisfied with that and I might want to examine animalcules at higher magnification for entertainment. The Amscope B490B microscope appears to be a good compromise for the factors of cost, optical quality, and mechanical stability for a microscope. Specifically, the packaging was secure, the components were clean, and microscope assembly was easy. There were no missing parts. It had a plastic dust cover, an extra illuminator bulb, a spare fuse, and some immersion oil. All components (coarse focus, fine focus, stage transit, objective turret rotation, etc., worked smoothly. The microscope body appears to be well built with fairly close tolerances (except, perhaps, for the slightly loose oculars). The microscope illuminator was centered and the illumination was intense (and adjustable). The objectives are reasonably parfocal. Image quality is good, especially for the price (compared to a $10 research grade light microscope system. The manual was written with some strange phrases and terms but the content was adequate for me. The attached image was recorded with an hand held iPhone from the B490B LM eyepiece. ... show more
Reviewed in the United States on May 21, 2020 by Ross Payne Ross Payne
    • Great Scope - Heavy Duty - Quality construction
Received this earlier today and have been playing with it now for about 7 hours. I would note to others that there are several models of this particular scope on amazon that differ mainly in the accessories that come with them. As a side now, while not listed for this scope, it came with WF16x eyepieces as well as the 10x & 20x listed which was a nice bonus. All in all I am very happy with this purchase. The scope is heavy duty, and in watching youtube video's from colleges to brush up on my scope skills, this scope functions the same as the olympus and other scopes they professors were using. Pros: *Mechanical stage is very solid and it's easy to get around the slide and note locations with graduations. Single axis/dual knob control makes slide navigation and focusing at the same time easy. *3 eyepieces included giving additional 64/160/640 and 1600 magnifications. *Heavy construction *Halogen Illumination (I was told by several doctorate level researchers to avoid LED at all costs *Swiveling eyepieces *Includes small amount of immersion oil, extra bulb and extra fuse standard along with storage bottles for objectives. Cons: *While expected at this price range, there are some spots visible at high magnification in a couple of the eyepieces, but they in no way detract from viewing. Not a con, but I kinda wish I'd spent the extra bucks on a trinocular for camera/real time/tri person viewing etc. While you can get the adapter to attach a camera to the binoc version, if I was to repeat I'd go ahead and get the trinoc version. ... show more
Reviewed in the United States on November 20, 2014 by Shawnna

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