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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
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- 40X-1600X 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
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AmScope T490B 40X-2000X Professional Trinocular Lab Education Biological Compound Microscope with 3D Two-Layer Mechanical Stage
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 System
Most 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).
Microscopes 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 & Specifications
- Simul-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
Infinity Plan Achromatic
Seller Warranty Description5 years warranty for parts and labor. Buyer covers round way shipping cost.
Top customer reviews
The ability to attach a video camera/camera via the monocular port is an awesome feature. Canon cameras can attach without the current adapter if you purchase a Canon specific adapter by Amscope, which cost around $90.
My major dislike is the lighting. It works ok, but I personally find it not bright enough. I also found that the higher resolution I want to go, the light becomes duller, though still functional. The lighting is classic halogen, not LED, but I knew that when purchasing. Only a month afterwards did I have an opportunity to use an LED microscope. Boy, that lighting will spoil you. The LED lighting is super bright, producing a pleasant viewing experience (makes for better microscope pictures too). The super power efficient LED lasts for a long time with no heat build-up like a halogen. But behold, if you Google 'microscope led hack,' you should find a few sites on how to LED your microscope. Amscope also sells an LED microscope light attachment for $30 bucks, which I think it can be used (or hacked) for this model.
You may find the microscope light fantastic as it is. It does work fine, but I personally think it could be better, since LED is a more quality light and actually cheaper than halogen. It also seems that LED technology is now becoming the standard lighting in modern microscopes. Ever lived in a house/apartment with standard incandescent bulbs and you noticed how everything became vivid-like after changing to fluorescent bulbs (or even LED)? That's the similar effect you'll find with a microscope with LED.
The star rating is 5 stars for the microscope, and 4 1/2 stars on the light. OH, for beginners, don't forget to calibrate (or adjust) your light/diaphragm on the microscope. I don't think this is quite important, as it was never taught in lab. It is like a 1 minute process that involves placing a paper under the light (one of the methods I came across), and adjusting other stuff like diaphragm to get a clearer, defined view. Doesn't hurt. Google 'adjusting microscope' or some type of variation like that.
If you're buying this as a non-professional, curious person I would recommend a stain kit with a variety of stains, microtome, pipettes, extra slides (both with depression and flat), slightly more slide covers than slides, pre-moistened alcohol pads, and lint-free wipes (I like KimTech).
Attached to the review are some sample shots I took with my phone through the eyepiece, I hope they help because it was an frustrating ordeal to get them. Again, the camera mount and available imaging unit could use some more love, price-wise.
I also bought the Phase Contrast Kit (Model PCT) directly from Amscope for $684. When I was purchasing it, I thought it was a bit strange that Amscope priced the contrast kit so high since the microscopes it was designed to be used with cost only a fraction. I thought maybe the quality of the contrast kit might be high. Unfortunately, that wasn't the case. It was not really useable so I ended up returning it.
The reason why I mention the Phase Contrast kit is this. For anyone considering buying anything from Amscope, buy from Amazon if you can. Returning anything to Amazon is exceptionally easy. That's not the case if you buy directly from Amscope. I had to call 3 times to get an RMA number, then call 3 times to get a refund processed. They eventually refunded the full price less shipping cost but it took too much effort to make that happen. Their technical support is non-existent.