Innovative Self-Watering Indoor Planters&Smart Garden Solutions
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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. 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.

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
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:

  • One binocular head
  • One microscope body
  • Four objective lenses: 4X, 10X, 40X, 100X
  • One pair 10X eyepieces
  • One power cord (US and Canada standard)
  • One dust cover
  • Three color filters (blue, green, yellow)
  • One spare halogen bulb
  • One spare fuse
  • One sample bottle of immersion oil
  • AmScope B490 Series Professional Biological Binocular Compound Microscope With 20W Halogen, 3D Mechanical Stage and Optional Digital Camera
    • 40X1000X
    • 40X1600X
    • 40X2000X
    • 40X2500X
    • noneselected
    • MiniUSB
    • USB20
    • USB30

    $ 63.22

    $ 48.63

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