AmScope 40X 2000X Binocular Biological Compound Microscope

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Product Overview

Description


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 20X eyepieces expand the maximum magnification to 2000X 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.



Specifications

















































































































































Optical SystemFinite-conjugate
 
Mechanical Tube Length160mm
 
HeadBinocular, 30° incline, 360° rotatable
 
Interpupillary AdjustmentSiedentopf compensation-free gemel
 
Ocular Diameter23mm
 
Eyepieces10X, 20X
 
Objective LensesDIN standard
 
Objective Parfocal Distance45mm
 
Objective Mounting ThreadRMS 20.32mm
 
Objective Turretquadruple
 
Focusing SystemCoaxial coarse and fine focus, upper limit-stop, tension control
 
Focus Range30mm
 
Division of Fine Focus0.002mm
 
Stage DesignDouble-layer with caliper
 
Stage Dimensions140mm x 140mm
 
X-Y Translation Range75mm x 45mm
 
Transmitted Illumination20W halogen
 
CondenserAbbe condenser with iris diaphragm, NA1.25
 
Sub-stage Condenser-holderrack and pinion
 
Power110VAC 60Hz
 

Objective Lenses








































MagnificationCorrectionsNAImmersion MediumCover-glass Thickness
4Xachromatic0.100.17mm
10Xachromatic0.250.17mm
40Xachromatic0.650.17mm
100Xachromatic1.25oil0.17mm


 


Packing List:


 



  • One binocular head

  • One microscope body

  • Four objective lenses: 4X, 10X, 40X, 100X

  • One pair 10X eyepieces

  • One pair 20X eyepieces

  • One power cord (US and Canada standard)

  • One dust cover

  • Three color filters (blue, green, yellow)

  • One spare halogen bulb

  • One spare fuse


 


0.1911 s.