Magnification range from 40x up to 2000x Binocular head with 360° rotation and two eyepiece sets (10x and 20x) Four DIN achromatic objective lenses: 4x, 10x, 40x, and 100x (oil immersion) Fully mechanical 110mm x 120mm stage for precise slide control 1.25 N.A. Abbe condenser with iris diaphragm for optimized contrast Includes 10 prepared biological slides and immersion oil Description FAQ Specifications In the Box Downloads Warranty Celestron Labs CB2000CF Compound Microscope The Celestron Labs CB2000CF Compound Microscope combines a powerful magnification range of 40x to 2000x with the precision controls required for laboratory and educational settings. Its optical system is built around four achromatic DIN objectives (4x, 10x, 40x, 100x) and two sets of eyepieces (10x and 20x) for eight distinct magnification levels. The all-metal construction houses a 1.25 N.A. Abbe condenser and a fully mechanical 110mm x 120mm stage, and the kit includes 10 prepared slides to begin analysis immediately. 40x to 2000x Magnification with 2 Eyepiece Sets The CB2000CF delivers eight levels of magnification, from wide-field scanning to high-power oil immersion viewing. By pairing the two included sets of eyepieces—10x and 20x—with the quadruple nosepiece holding four DIN-standard achromatic objectives (4x, 10x, 40x, and 100x), you can move seamlessly from 40x all the way to 2000x. The comfortable binocular head is inclined at 45° and rotates a full 360°, allowing for shared viewing without moving the entire instrument. Adjustable LED and 1.25 N.A. Abbe Condenser Proper illumination is critical for resolving fine detail, especially at high magnifications. The CB2000CF features a variable-intensity lower LED illuminator controlled by a simple dial, providing cool, consistent light. This light is focused through a professional-grade 1.25 N.A. Abbe condenser with an adjustable iris diaphragm, giving you direct control over the cone of light to optimize contrast and resolution for any specimen. Precision Control with a 110mm x 120mm Stage Navigating a specimen slide at 1000x requires smooth, repeatable motion. The Celestron Labs CB2000CF is equipped with a 110mm x 120mm mechanical stage with coaxial control knobs for fine X-Y positioning. The rack and pinion focus mechanism includes separate coarse and fine focus knobs; each rotation of the fine focus dial adjusts the stage by just 0.1mm, ensuring you can achieve critical sharpness with the 100x oil immersion objective. All-Metal Body and 10 Prepared Slides Built for stability and longevity, the CB2000CF features a robust all-metal construction suitable for classroom or lab environments. The kit is ready for immediate use, including 10 professionally prepared slides with biological specimens like *Aspergillus*, *Spirogyra*, and Lily ovary cross-sections. Also included are three color filters (blue, green, white opaque) to further enhance contrast on specific stained or unstained samples, and a vial of immersion oil for the 100x objective. What is the purpose of the 100x oil immersion objective on the CB2000CF? The 100x objective requires a drop of immersion oil between the lens and the slide cover slip. This oil prevents light from refracting away from the objective, which is essential for achieving the high resolution needed to see extremely small specimens like bacteria or the detailed structures within cells. The CB2000CF includes immersion oil for this purpose. How do I get all eight magnification powers from the Celestron Labs CB2000CF? The eight powers are achieved by combining the two sets of eyepieces with the four objectives. You get 40x, 100x, 400x, and 1000x with the 10x eyepieces, and 80x, 200x, 800x, and 2000x by swapping in the 20x eyepieces. What does the Abbe condenser and iris diaphragm do on the CB2000CF? The 1.25 N.A. Abbe condenser gathers the light from the LED illuminator and concentrates it into a cone that illuminates the specimen. The iris diaphragm allows you to adjust the width of this cone. Closing the iris increases contrast, which is useful for unstained specimens, while opening it increases resolution for viewing fine details. Is the Celestron CB2000CF suitable for a high school biology lab? Yes. Its all-metal construction, DIN-standard optics, mechanical stage, and magnification up to 2000x make it an excellent tool for high school and even introductory college-level biology. The inclusion of 10 prepared slides allows for immediate, curriculum-relevant use right out of the box. How does the mechanical stage on the CB2000CF help when viewing the included Spirogyra slide? Spirogyra consists of long filaments. The mechanical stage allows you to use the X-Y controls to smoothly and precisely follow the length of a filament at high power (e.g., 400x) without having to manually push the slide, which can be jerky and cause you to lose your target. Can I power the CB2000CF in different countries? Yes, the microscope includes a universal AC adapter (100-240V) and comes with interchangeable plugs for Type A, C, G, and I outlets, making it suitable for use in North America, Europe, the UK, Australia, and other regions. Type of Microscope Compound Binocular Head Binocular with 360° rotatable 45° incline and interpipilary distance adjustability Eyepiece Magnification (1) 10x and (1) 20x (10x with pointer) Eyepiece Diameter 23.2mm (.91") Nosepiece Quadruple, rotational Objective Type Refractive, Achromatic Objective Standard DIN Objective Magnification (4) 4x, 10x, 40x, 100x immersion Objective Thread 4/5" x 1/36" Focus Type Rack and pinion, coarse and fine focus (individual dials) Focus Travel (per rotation) 0.1mm (.004") Magnification Range 40x to 2000x (40x, 80x, 100x, 200x, 400x, 800x, 1000x and 2000x) Illumination Lower LED Illumination Adjustment Dial Power Source Universal AC 100-240V adapter Stage Mechanical stage, 110mm x 120mm (4.3" x 4.7") Condenser Abbe with Iris adjustment Condenser N.A. 1.25 Celestron Labs CB2000CF Microscope × 1 10x Eyepiece × 1 20x Eyepiece × 1 10 Prepared Slides × 1 3 Color Filters (Blue, Green, White Opaque) × 1 Immersion Oil × 1 Universal AC Adapter with International Plugs × 1 Download Software Celestron 2-Year Warranty
