AmScope B690B-PL-PCT 40X-2000X Plan Phase Contrast Microscope

AmScope, B690B-PL-PCT, 40X-2000X Professional Infinity Plan Phase Contrast Kohler Compound Microscope

B690B-PL-PCT Includes Only:

• One Binocular Siedentopf Head
• One Microscope Body Frame with Base and Kohler Illumination System
• Four Infinity Plan Objectives: 4X, 10X, 40X and 100X
• Two Pairs of Extreme Widefield Eyepieces: WH10X and WH20X
• One Power Cord
• Three Color Filters
• One Dust Cover
• One Spare Halogen Bulb
• One Spare Fuse
• Immersion Oil
• User's Manual Download
• Four Infinity Plan Phase-Contrast Objectives: 4X, 10X, 40X and 100X
• One phase-Contrast turret condenser
• One CT lens

This T690-PL trinocular microscope is upgraded with a turret phase-Contrast system for live-cell analysis among other things. Designed for professional biological applications, the microscope's infinity-Corrected optical system ensures reliable, low-distortion magnification, with plan-achromatic corrections for accurate colors, excellent field flatness and edge-to-edge sharpness. The halogen illumination system provides low-fatigue, evenly-distributed light for maximum contrast and definition. This model is a popular choice for veterinarians and university laboratories.

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. 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. Additional 20X eyepieces expand the maximum magnification to 2000X with 8 unique levels. This covers magnifications needed for studying hair follicles, cells, soil, 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, with planatic flat-field correction to provide edge-to-edge sharpness.

The large 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.

Built on Koehler illumination principals, the sub-stage lighting provides evenly-distributed light for optimal contrast. The halogen light-source provides bright illumination with a lower color-temperature for decreased fatigue when used for long periods. 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 height adjustment for precision control, and is centerable for proper alignment. The illuminator's field lens provides an iris diaphragm to control light-spread, optimizing contrast and definition in specimen features.

A phase-Contrast kit is included with a turret condenser and 4 plan-achromatic phase-Contrast objective lenses. Phase contrast is used to reveal detail in indistinct objects, such as unstained cells and microorganisms that would otherwise appear invisible. By using a combination of specialized objective lenses and a modified light condenser, these invisible objects can be visualized by manipulating variations in phase. This turret condenser allows you to easily rotate through the four phase-Contrast settings (4X, 10X, 40X, 100X). Each phase-Contrast setting has a centerable annulus for proper alignment. Each of the phase-ring equipped objective lenses has plan-achromatic corrections for improved color and resolution, as well as edge-to-edge sharpness.