Kern OBL 125 Binocular Infinity E-Plan Halogen Tool

Description

Screen routine hematological smears and tissue biopsies using the Kern OBL 125 Binocular Microscope across medical testing laboratories. Operating on an infinity-corrected optical pathway, it delivers 40x, 100x, 400x, and 1000x magnification via four Infinity E-Plan objectives: 4x/0.10, 10x/0.25, spring-loaded 40x/0.65, and spring-loaded 100x/1.25 oil immersion. Anti-fungus treated lenses provide flat-field optical correction across the 20 mm field of view, keeping cellular structures sharp from center to margin.

Transmitted illumination is supplied by an adjustable 6V/20W halogen sub-stage module focused through a height-adjustable Abbe 1.25 NA condenser equipped with an iris diaphragm, rack-and-pinion focus mechanics, and a filter slot. The 30-degree inclined binocular head rotates 360 degrees, fitted with paired widefield WF 10x/20 mm eyepieces with left-tube diopter adjustment across a 50 mm to 75 mm interpupillary span. The 145 x 130 mm double-layer mechanical stage provides 76 x 52 mm of coaxial XY travel, while coaxial coarse and fine focus knobs feature 2-micron graduations across a 6.6 kg cast chassis powered by universal 100-240V AC power.

Key Features of Kern OBL 125 Binocular Microscope

A professional laboratory binocular biological compound microscope featuring Infinity E-Plan optics and warm 20W halogen illumination. Combines 40x to 1000x magnification with an Abbe 1.25 NA condenser, double-layer mechanical stage, and 2-micron coaxial focusing.

• Infinity E-Plan objectives: 4x, 10x, spring-loaded 40x, and spring-loaded 100x oil immersion
• Reversed quadruple nosepiece revolving smoothly on precision ball bearings
• Sub-stage transmitted 6V/20W halogen light module with continuous electronic dimmer
• Height-adjustable Abbe 1.25 NA condenser equipped with an adjustable iris diaphragm
• Double-layer 145 x 130 mm mechanical stage with 76 x 52 mm low-drop coaxial XY drive
• Coaxial coarse and fine focus drive with calibrated 2-micrometer fine division markings
• Widefield high-eyepoint WF 10x/20 mm eyepieces with left-tube diopter adjustment
• Solid 6.6 kg cast-metal chassis provides complete vibration-free benchtop stability

Infinity E-Plan Optics & Warm Halogen Lighting

Infinity-corrected E-Plan optics flatten image curvature across the 20 mm field of view, keeping stained tissue margins crisp from center to edge. The 20W halogen lamp produces a warm, high-CRI continuous spectrum that renders pink eosin and blue hematoxylin stains with authentic color saturation without thermal distortion. Spring-loaded mounts on the 40x and 100x objectives protect slide cover slips from accidental mechanical strikes.

Coaxial Focus Mechanics & Stage Translation

The double-layer mechanical stage provides smooth 76 x 52 mm coordinate translation via right-hand drop-down stalks, keeping hand movements relaxed during long diagnostic shifts. Coaxial coarse and fine focus knobs operate on internal gear tracks with calibrated 2-micron division markings, giving technicians delicate focal plane control. The reverse-facing nosepiece keeps objective lenses angled safely back toward the stand neck during slide swaps.

• Reversed quadruple nosepiece leaves the stage completely open for rapid slide swaps
• Abbe condenser iris diaphragm allows fine contrast tuning across all objective powers
• Low-position coaxial XY controls reduce wrist fatigue during high-volume sample rounds

Kern & Sohn Three-Year Laboratory Warranty

Kern & Sohn backs the OBL 125 with a comprehensive three-year factory warranty covering optical elements, stand castings, and mechanical stage drives, backed by two years on electrical halogen circuitry. The complete package contains the OBL 125 binocular frame stand, four Infinity E-Plan objectives, pair of WF 10x/20 mm eyepieces, immersion oil flask, power cable, dust cover, and manual.