AmScope T390 Series Phase-Contrast Biological Trinocular Compound Microscope with 20W Halogen, 3D Mechanical Stage and Optional Digital Camera

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This trinocular phase-contrast microscope is designed for advanced education, research, and clinical applications focusing on live-cell studies. High quality optics and precision m echanics have made this time-tested design a favorite for labs across many industries. Brightfield and phase-contrast optics provide the flexibility needed for both fixed and live cells, fluids, and materials. The trinocular head can be customized for each user, with a sliding interpupillary adjuster for varying eye spacing, and diopters for both eyes to fine-tune focus for nearsighted users and for asymmetry. The head can be rotated 360°, and has a 45° incline for viewing while seated or standing. Interchangeable eyepieces allow for an expanded magnification range, or the use of special eyepieces with pointers and measuring reticles. The trinocular photo port provides a dedicated mount for using a camera. The port is height-adjustable to match focus with the eyepieces, and does not require switching when used simultaneously with the eyepieces. 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. A phase-contrast kit is included, with three specialized objective lenses (10X, 40X, 100X) and a modular light condenser. 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 the specialized objective lenses and the modified light condenser, these invisible objects can be visualized by manipulating variations in phase. Specifications Optical System Finite-conjugate Mechanical Tube Length 160mm Head Trinocular, 45° incline, 360° rotatable Interpupillary Adjustment sliding, 55-75mm Ocular Diameter 23mm Eyepieces 10X Photo Port 23mm tube, rotating height-adjustment Objective Lenses DIN standard Objective Parfocal Distance 45mm Objective Mounting Thread RMS 20.32mm Objective Turret quadruple Focusing System Coaxial coarse and fine focus 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 50mm Transmitted Illumination 20W halogen Condenser Abbe condenser with iris diaphragm, NA1.25, Ø 32mm filter holderNA1.25 modular phase contrast condenser (10X, 40X, 100X) Sub-stage Condenser-holder rack and pinion Power 100-240VAC 50/60Hz wide-band Dimensions 11" x7-1/2" x 15-3/4" (28cm x 19cm x 40cm) 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 10X AchromaticPhase contrast 0.25 — 0.17mm 40X AchromaticPhase contrast 0.65 — 0.17mm 100X AchromaticPhase contrast 1.25 oil 0.17mm Packing List:One trinocular microscope head One microscope body Four objective lenses: 4X,10X,40X,100X One pair 10X eyepieces One power cord (US and Canada standard) One mirror for ambient lighting One dust cover Three color filters One spare halogen bulb (6V/20W) One spare fuse One sample bottle of immersion oil One phase contrast kit -- Three objective lenses -- Four-piece modular condenser -- One centering eyepiece -- One aluminum case Show more