Magnification range from 40x to 2000x Four DIN standard achromatic objectives: 4x, 10x, 40x, 100x 1.25 N.A. Abbe condenser with iris diaphragm Fully mechanical stage measuring 110mm x 125mm Coarse and fine focusing knobs with 0.1mm travel per rotation Includes 10 prepared slides and 3 color filters Description FAQ Specifications In the Box Downloads Warranty Celestron Labs CM2000CF Compound Microscope The Celestron Labs CM2000CF Compound Microscope delivers a powerful magnification range from 40x up to 2000x using its included 10x and 20x eyepieces. It comes equipped with four DIN standard achromatic objectives (4x, 10x, 40x, and 100x) mounted on a quadruple rotational nosepiece for rapid power changes. The bright, adjustable lower LED illumination is precisely focused by a 1.25 N.A. Abbe condenser, ensuring optimal contrast for viewing specimens on the 110mm x 125mm mechanical stage. 40x to 2000x Magnification with 4 DIN Achromatic Objectives The CM2000CF provides eight distinct levels of magnification, from a wide 40x for scanning slides to a powerful 2000x for detailed cellular examination. The optical system is built around four DIN standard, achromatic objectives (4x, 10x, 40x, 100x) that minimize chromatic aberration, ensuring colors are rendered accurately without distracting fringes. The 100x objective is designed for oil immersion techniques, allowing you to achieve maximum resolution for viewing bacteria and other minute structures. 1.25 N.A. Abbe Condenser for High-Contrast Illumination Proper illumination is critical for high-magnification work, and the CM2000CF excels with its professional-grade components. The adjustable lower LED illuminator provides a cool, consistent light source that is focused through a 1.25 N.A. Abbe condenser. You can precisely control the cone of light and image contrast by adjusting the integrated iris diaphragm, a feature essential for techniques like Köhler illumination. For further control over image quality, three color filters (blue, green, white opaque) are included to enhance detail in stained or unstained specimens. 110mm x 125mm Mechanical Stage and 0.1mm Fine Focus Control Centering and tracking a specimen at high power is made simple with the fully adjustable mechanical stage. The large 110mm x 125mm platform includes slide clips and coaxial knobs for smooth, backlash-free movement along the X and Y axes. The rack-and-pinion focusing system features separate coarse and fine focus dials. The fine focus knob advances the stage just 0.1mm per rotation, giving you the precision needed to achieve a perfectly sharp image, even at 2000x magnification. 360° Rotatable Head and Universal 100-240V Power Built on a robust, all-metal frame for stability, the CM2000CF is designed for lab and classroom environments. The monocular head is inclined at a comfortable 45° angle and can rotate a full 360°, allowing you to easily share the view without moving the entire microscope. Power is supplied by a universal AC 100-240V adapter and includes four interchangeable plugs (Type A, C, G, I), making it ready for use anywhere in the world. What is the 100x immersion objective on the CM2000CF used for? The 100x objective is a high-resolution lens that requires a drop of immersion oil between the lens and the slide cover slip. This technique prevents light refraction, increasing the numerical aperture and allowing for much finer detail to be resolved. It is essential for observing very small specimens like bacteria, yeast cells, or the intricate details on the included Testis, sec. slide. How do I use the color filters included with the Celestron CM2000CF? The filters are placed in the holder located on the bottom of the Abbe condenser. They are used to increase contrast and bring out detail, especially in unstained or lightly stained specimens. The blue filter is often used to approximate natural daylight for photography, while the green filter can enhance the visibility of cellular structures when using achromatic objectives. Is the CM2000CF suitable for a classroom setting? Yes, its all-metal construction makes it durable for shared use. The 360° rotatable head is particularly useful, as an instructor can turn the eyepiece towards students without moving the microscope and disturbing the specimen. The included 10x eyepiece with a pointer is also ideal for educational settings, allowing a teacher to precisely indicate features of interest. What does the 1.25 N.A. Abbe condenser do for the CM2000CF? The N.A. (Numerical Aperture) of 1.25 indicates a high-quality condenser capable of concentrating a sharp cone of light onto the specimen. Paired with the iris diaphragm, it gives you full control over the brightness, contrast, and depth of field of the image. This is a significant advantage over microscopes with a simple disc diaphragm or no condenser at all, especially at magnifications of 400x and above. Can I view live organisms like Spirogyra from the included slides with the CM2000CF? The included Spirogyra slide is a prepared, permanently mounted specimen. To view live organisms, you would need to create a "wet mount" slide. The CM2000CF is an excellent tool for this; its adjustable LED illumination provides cool light that won't harm living samples, and the mechanical stage allows you to follow moving organisms across the slide. What is the highest useful magnification for the CM2000CF? While the microscope can achieve 2000x magnification, the maximum useful magnification is generally limited by the resolving power of the optics, which is determined by the numerical aperture of the objective. For the 100x oil immersion objective, magnifications around 1000x will typically provide the most resolved detail. The 2000x setting offers higher image scale but may not reveal additional information, a phenomenon known as "empty magnification." Microscope Type Compound Head Monocular, 360° rotatable with 45° incline Eyepiece Magnification 10x (with pointer), 20x Eyepiece Diameter 23.2mm (0.91") Nosepiece Quadruple, rotational Objective Standard DIN, Achromatic Objective Magnification 4x, 10x, 40x, 100x (immersion) Magnification Range 40x, 80x, 100x, 200x, 400x, 800x, 1000x, 2000x Focus System Rack and pinion with coarse and fine focus dials Fine Focus Travel 0.1mm per rotation Stage Mechanical stage with X-Y controls Stage Dimensions 110mm x 125mm (4.3" x 4.9") Illumination Lower LED with adjustment dial Condenser Abbe with Iris adjustment Condenser N.A. 1.25 Power Source Universal AC 100-240V adapter Included Plugs Type A, C, G, I CM2000CF Compound Microscope × 1 10x Eyepiece with Pointer × 1 20x Eyepiece × 1 Immersion Oil × 1 Color Filters × 3 (Blue, Green, White Opaque) Universal AC Adapter with 4 Plugs × 1 Prepared Slides × 10 Download Celestron Labs CM2000CF Manual Celestron 2-Year Limited Warranty
