The T520 is a medium-sized compound microscope designed for biological applications. Ideally suited for classrooms and veterinary practices, this model provides essential functionality with a solid build.
The trinocular head accommodates viewing through eyepieces and through the top-mounted photo port. The binocular viewing tubes use Siedentopf adjustment to easily fit any user. A diopter is available on the left ocular tube to compensate for asymmetry, and the ocular tubes are angled at 30° to comfortably accommodate a seated position without neck strain. The head has a top-mounted, height-adjustable 23mm photo port for mounting optional cameras. C-mount cameras can be paired with various reduction lenses for mounting to the port and optimizing field-of-view.
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. The turret's reversed orientation provides more working room above the stage. 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, and has centering screws for properly aligning the condenser.
Specifications
Optical System | Finite-conjugate |
Mechanical Tube Length | 160mm |
Head | Trinocular, 30° incline, 360° rotatable |
Interpupillary Adjustment | Siedentopf compensation-free gemel, 55-75mm |
Ocular Diameter | 23mm |
Eyepieces | 10X |
Photo Port | Height-adjustable 23mm tube |
Objective Lenses | DIN standard |
Objective Parfocal Distance | 45mm |
Objective Mounting Thread | RMS 20.32mm |
Objective Turret | reversed, quadruple |
Focusing System | Coaxial coarse and fine focus, tension control |
Division of Fine Focus | 0.002mm |
Stage Design | Double-layer with caliper |
Stage Dimensions | 140mm x 132mm |
X-Y Translation Range | 75mm x 30mm |
Transmitted Illumination | 20W halogen |
Condenser | Abbe condenser with iris diaphragm, NA1.25 |
Sub-stage Condenser-holder | rack and pinion |
Power | 85-265VAC 50/60Hz wide-band |
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 |