AmScope B490A-50P100S Binocular Biological Microscope with 1600X Magnification and 20W Incandescent Light Source
Key Features
- 40X to 1600X magnification range for studying a range of specimens including hair follicles, cells, and bacteria. 10X and 16X eyepieces provide 8 unique magnification settings.
- A top choice for veterinarians, clinics, and classrooms, this microscope provides high quality optics and precision mechanics.
- Professional features include a Siedentopf binocular head for precise adjustments, a 2-layer mechanical stage with low-position controls, and coaxial coarse and fine focus for ergonomics and an efficient workflow.
- Halogen lighting reduces eye-strain for prolonged use.
- A large compliment of optional accessories are available for darkfield and phase-contrast.
- Includes 50 blank slides and 100 cover slips for dry and wet mount specimens.
Choose the viewing head and illumination that fit your workflow.
Four professional configurations built around the same finite-achromatic optical platform and precision mechanical stage.
One professional family.
Four configurations.
Compare head type, camera readiness and illumination technology at a glance.
| COMPARE AT A GLANCE | B490 | B490-LED | T490 | T490-LED |
|---|---|---|---|---|
| Viewing head | Siedentopf binocular | Siedentopf binocular | Siedentopf trinocular | Siedentopf trinocular |
| Dedicated camera port | No | No | Yes | Yes |
| Simul-focal | No | No | Yes | Yes |
| Illumination type | Transmitted | Transmitted | Transmitted | Transmitted |
| Light source | Incandescent / halogen | LED | Incandescent / halogen | LED |
| Illumination power | 20W | 1.4W | 20W | 1.4W |
| Magnification family | 40X-1000X / up to 2500X | 40X-1000X / up to 2500X | 40X-1000X / up to 2500X | 40X-1000X / up to 2500X |
| Eyepieces | 10X / 16X / 20X / 25X | 10X / 16X / 20X / 25X | 10X / 16X / 20X / 25X | 10X / 16X / 20X / 25X |
| Objective set | 4X / 10X / 40X / 100X oil | 4X / 10X / 40X / 100X oil | 4X / 10X / 40X / 100X oil | 4X / 10X / 40X / 100X oil |
| Optical design | Finite achromatic | Finite achromatic | Finite achromatic | Finite achromatic |
| Condenser | Abbe NA 1.25 | Abbe NA 1.25 | Abbe NA 1.25 | Abbe NA 1.25 |
| Darkfield condenser | Dry option | - | Dry and oil options | - |
| Condenser adjustment | Rack-and-pinion | Rack-and-pinion | Rack-and-pinion | Rack-and-pinion |
| Power compatibility | 110 VAC, 60 Hz | 110 VAC, 60 Hz | 110 VAC, 60 Hz | 110 VAC, 60 Hz |
| Camera bundles available | Yes | Yes | Yes | Yes |
The B490 is our hardest-working go-to microscope. The top choice for veterinarians, breeders, and clinics, this instrument has proven reliability and optical quality. It boasts features such as a compensation-free Siedentopf head, smooth stage translation, and a precision focus system with easy tension-adjustment and vertical-lock.
The 490 series offers a wide range of optional accessories to expand the functionality. The magnification range can be expanded with a large selection of objective and ocular lenses. Specialized condensers are available for dark-field and phase-contrast applications, ideal for bloodwork, fluid-analysis, and pathology.
To customize the microscope to your viewing comfort, the eyepiece spacing can be easily adjusted using a precision Siedentopf mechanism. A diopter is available on both ocular tubes to compensate for asymmetry, and the ocular tubes are angled at 30° to comfortably accommodate a seated position without neck strain.
The objective turret provides instant access to 4 magnification levels to easily focus in on minute details from 40X to 1000X. Additional 16X eyepieces expand the maximum magnification to 1600X with 8 unique levels. This covers magnifications needed for studying hair follicles, cells, and bacteria. These high-quality lenses are achromatically corrected to improve resolution and color accuracy.
The 2-layer mechanical stage provides smooth and precise movement for examination of specimen slides. The stage's low-position controls are conveniently placed near the coaxial focus knobs for a streamlined workflow. Examining specimen slides is intuitive and precise for users at any skill level.
The halogen sub-stage lighting provides bright illumination with excellent color rendering. The warm lighting is better suited for prolonged use, causing less eyestrain than LED and fluorescent lighting. The Abbe light condenser has a high 1.25 numerical aperture for oil-immersion, and an iris diaphragm to optimize contrast and depth-of-field. The condenser holder uses rack-and-pinion movement for precise height adjustment.
This kit includes 50 blank slides and 100 cover slips for dry or wet mounting specimens to view with your microscope.
Specifications
| Optical System | Finite-conjugate |
| Mechanical Tube Length | 160mm |
| Head | Binocular, 30° incline, 360° rotatable |
| Interpupillary Adjustment | Siedentopf compensation-free gemel |
| Ocular Diameter | 23mm |
| Eyepieces | 10X, 16X |
| Objective Lenses | DIN standard |
| Objective Parfocal Distance | 45mm |
| Objective Mounting Thread | RMS 20.32mm |
| Objective Turret | quadruple |
| Focusing System | Coaxial coarse and fine focus, upper limit-stop, tension control |
| Focus Range | 30mm |
| Division of Fine Focus | 0.002mm |
| Stage Design | Double-layer with caliper |
| Stage Dimensions | 140mm x 140mm |
| X-Y Translation Range | 75mm x 45mm |
| Transmitted Illumination | 20W halogen |
| Condenser | Abbe condenser with iris diaphragm, NA1.25 |
| Sub-stage Condenser-holder | rack and pinion |
| Power | 110VAC 60Hz |
Objective Lenses
| Magnification | Corrections | NA | Immersion Medium | Cover-glass Thickness |
|---|---|---|---|---|
| 4X | achromatic | 0.10 | — | 0.17mm |
| 10X | achromatic | 0.25 | — | 0.17mm |
| 40X | achromatic | 0.65 | — | 0.17mm |
| 100X | achromatic | 1.25 | oil | 0.17mm |
Packing List:
| ASIN | B00O9GRNP6 |
| camera connection type | N/A |
| category | Microscope-Compound |
| compatibility | None |
| condenser design | Abbe-Spiral w/ diaphram |
| field view | Widefield |
| head style | Microscopes-Binocular |
| illumination style | Transmitted (Bottom) |
| light type | Halogen |
| magnification power config | 40X-1600X |
| magnifying power | Microscope-40X to 1600X |
| Manufacturer | AmScope |
| microscope application | College, Teaching/Training |
| microscope category | Compound |
| microscope color | White, Black |
| microscope condenser design | Abbe-Spiral w/ diaphram |
| microscope condenser optics | NA 1.25 |
| microscope condenser type | Brightfield |
| microscope eyepiece power | 10X, 16X |
| microscope eyepiece size | 23mm |
| microscope field view | Widefield |
| microscope head style | Binocular |
| microscope iris | With Iris |
| microscope light power | 20W |
| microscope light shape | Built-in |
| microscope light type | Halogen |
| microscope magnifying power | 40X to 1600X |
| microscope number of bulbs | 1 |
| microscope objective power | 4X, 10X, 40X, 100X |
| microscope objective size | 20mm |
| microscope optics | Achromatic |
| microscope power supply | 110V |
| microscope stage | Two-layer Mechanical Stage |
| microscope stage div | 1.00mm |
| optics | Achromatic |
| pixel | N/A |
| product condition | NEW |
| prop 65 |
|
AmScope products are warranted against manufacturer’s defects in material and workmanship from the original date of purchase, for the following years:
• Five Year Warranty for Microscopes: All our microscopes come with a five (5) year factory warranty against manufacturing defects, covering labor and parts.
• Ten Year Warranty for Euromex Microscopes: All our Euromex microscopes come with a ten (10) year factory warranty against manufacturing defects, covering labor and parts.
• One Year Warranty for Telescopes: All our telescopes come with a one (1) year warranty, except when specified in the description.
• One Year Warranty for Accessories: All our microscope accessories (USB cameras, illuminators, illumination, dust covers, and etc.) come with a one (1) year warranty, except when specified in the description.
• One Year Warranty for Items labeled as “Product Ships From Manufacturer”: All products that are shipped directly from the manufacturer come with a one (1) year warranty, except when specified in the description.
Warranty does not apply for consumable accessories and parts such as bulbs, batteries, fuses, cords, optical components or any add-on accessories such as mechanical specimen holders that are not built into the microscope stage as an integral part of the original manufacture, etc. Warranty does not cover microscopes, lenses cameras or other accessories that have become inoperable due to dirt or damage due to misuse or lack of maintenance.
Note: Buyers are responsible for return shipping and handling cost for warranty services. Our warranty covers parts and labor only.
Choose the viewing head and illumination that fit your workflow.
Four professional configurations built around the same finite-achromatic optical platform and precision mechanical stage.
One professional family.
Four configurations.
Compare head type, camera readiness and illumination technology at a glance.
| COMPARE AT A GLANCE | B490 | B490-LED | T490 | T490-LED |
|---|---|---|---|---|
| Viewing head | Siedentopf binocular | Siedentopf binocular | Siedentopf trinocular | Siedentopf trinocular |
| Dedicated camera port | No | No | Yes | Yes |
| Simul-focal | No | No | Yes | Yes |
| Illumination type | Transmitted | Transmitted | Transmitted | Transmitted |
| Light source | Incandescent / halogen | LED | Incandescent / halogen | LED |
| Illumination power | 20W | 1.4W | 20W | 1.4W |
| Magnification family | 40X-1000X / up to 2500X | 40X-1000X / up to 2500X | 40X-1000X / up to 2500X | 40X-1000X / up to 2500X |
| Eyepieces | 10X / 16X / 20X / 25X | 10X / 16X / 20X / 25X | 10X / 16X / 20X / 25X | 10X / 16X / 20X / 25X |
| Objective set | 4X / 10X / 40X / 100X oil | 4X / 10X / 40X / 100X oil | 4X / 10X / 40X / 100X oil | 4X / 10X / 40X / 100X oil |
| Optical design | Finite achromatic | Finite achromatic | Finite achromatic | Finite achromatic |
| Condenser | Abbe NA 1.25 | Abbe NA 1.25 | Abbe NA 1.25 | Abbe NA 1.25 |
| Darkfield condenser | Dry option | - | Dry and oil options | - |
| Condenser adjustment | Rack-and-pinion | Rack-and-pinion | Rack-and-pinion | Rack-and-pinion |
| Power compatibility | 110 VAC, 60 Hz | 110 VAC, 60 Hz | 110 VAC, 60 Hz | 110 VAC, 60 Hz |
| Camera bundles available | Yes | Yes | Yes | Yes |