The B490 series 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.
Digital Imaging
Monitor and capture photos and videos with the included 2MP Wi-Fi digital eyepiece camera. Connect directly to the camera from your PC of MAC under the Wi-Fi settings to begin live-viewing specimens. The compact, lightweight camera can be used in place of an eyepiece to watch live images, and to record photos or videos on your computer.
This ability to view microscopic images on your computer reduces eye-strain, and allows groups of people to view images at the same time. Our professional software for Windows provides a wide assortment of capture and photo-editing functions including color correction, time-lapse capture, image stitching, and a full complement of measuring tools.
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, 20X |
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 |
Camera Specifications
Sensor | |
Sensor Model | Sony IMX307LQR-C |
Sensor Type | CMOS (color) |
Sensor Size | 1/2.8" format (5.73mm x 4.30mm) |
Pixels | 2M |
Pixel Size | 2.9µm x 2.9µm |
Shutter | Electronic Rolling shutter |
Sensitivity | 1300mV @ 1/30s (f/5.6) |
Camera | |
Frame Rate(s) | 25fps @ 1920 x 1080 |
Connectivity | Wi-Fi |
Mounting Size | 23mm |
Compensating Lens | — |
Power | 5V over USB |
Dimensions | 27.2mm Ø x 40mm |
Operating Temperature | -10-50°C |
Operating Humidity | 30-80% |
Software
OS Requirements | Windows (32/64 bit) 7/8/10/11, Mac OS 10.11 | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Hardware Requirements | Intel Core2 2.8GHz or comparable processor, 2GB RAM, USB 2.0 | ||||||||||||||||||
Features |
|