Olympus CX21 - Educational Microscope

The CX21 sets a new standard in educational microscopy for biological applications. Solid, easy to operate and reliable for routine educational users.

The CX21 has a sturdy, compact frame with a slightly smaller footprint than the CX31. The CX21 design is similar to the CH20 but with added features including infinity corrected optics and universal power supply for 100-120v/220-240v. The CX21 comes with an improved mechanical rackless stage and the same student proofing as the CX31 microscope.

The CX21 is packaged in two complete versions:

CX21FS

Microscope set with 4-position nosepiece, 4X, 10X, 40X, 100X objectives, 10X eyepieces, binocular observation tube, right hand stage, Abbe condenser, 6V20W lamphouse and bulb, power cord and blue filter.

CX21FS2

Microscope set with 4-position nosepiece, 4X, 10X, 40X objectives, 10X eyepieces, binocular observation tube, right hand stage, Abbe condenser, 6V20W lamphouse and bulb, power cord and blue filter.

Features & Benefits

• Infinity-corrected Plan Achromat objectives offer exceptional flatness producing sharp, clear images right up the edge of the field of view (4x, 10x, 40x, 100x oil)
• Two preset packages economically priced for educational institutions (Package 1: 4x, 10x, 40x objectives; Package 2: 4x, 10x, 40x, 100x objectives)
• Anti-fungus treatment helps protect optical parts even in high humidity work conditions
• Ultra-smooth, quadruple revolving nosepiece
• Fixed Abbe condenser N.A. 1.25, aperture stop position for each objective is clearly marked on the condenser resulting in high-contrast images
• A 6V/20W halogen bulb delivers clear, stable illumination. The built-in aspherical collector lens provides images that are bright and uniformly illuminated over the entire field of view.
• Compact design for easy portability and storage in a typical classroom cabinet
• Built in right hand stage with rackless design, low positioned X,Y controls
• Student proof - The eyepieces, objectives and condenser are all factory attached to the microscope body ensuring that no component is dropped or detached during transportation or regular use

Superior imaging

Plan objectives are packaged as standard, providing image flatness that is among the best in this class

The CX21 is equipped with the same UIS optical system used in Olympus’ top-level microscopes. In addition, Plan Achromat objectives are included as standard for the first time in this class of microscope, providing sharp images with high contrast right up to the edge of the field of view.

Easy,safe operation

Rackless stage for durability and ease of use

The wire-driven stage movement avoids any protrusion of racks -preventing the possibility of accidental damage or hand injury. Abrasion resistant rackless design ensures continuous smooth movement.

Rackless stage

Conventional stage

Component security - Student proof !

The eyepieces, objectives and condenser are all factory attached to the microscope body ensuring that no component is dropped or detached during transportation or regular use.

Ultra-smooth, quadruple revolving nosepiece

High-precision machining ensures smooth operation and durability. Nosepiece includes a rubber ring for an easy ergonomic grip.

Bright, uniform illumination

The CX21's 6V20W high intensity halogen lamp delivers clear, stable illumination. The built-in aspheric collector lens provides images that are bright and uniformly illuminated over the entire field of view.

Abbe condenser for optimized contrast

The optimal aperture stop position for each objective is clearly marked on the Abbe condenser, resulting in high-resolution, high-contrast images.

Mechanical stage focus-lock prevents mishaps

The focus position can be locked making it easy to refocus when the specimen is changed. With the upper stage position locked, there is no chance of the objective accidentally touching the slide and damaging either the specimen or the objective itself.

Use in any environment

Anti-fungus treatment for component durability An effective anti-fungus treatment is applied to the objectives, eyepieces and observation tube for consistent image clarity and long operating life even in hot humid work conditions.

Compact design, easy to store and carry

The CX21 is only 383 mm high, compact enough to be stored in a typical classroom cabinet. A cord-rest and wooden storage box are also available as an option, for convenient storage and portability.  

Individual choice of adjustment

Binocular observation tube is inclined 30 degrees allowing for an ergonomic, comfortable posture during observation. Eyepeices can be easily set for multiple users with a scaled interpupillary distance adjustment and diopter setting. High eyepoint design eyepieces with F.N.18 can be used comfortably without removing eyeglasses.

Tension adjustment for smoother focusing

The coaxial coarse/fine focusing knob is operable from either the left or right side. Coarse movement tension can be adjusted in
accordance with personal preference.

Ergonomic design for user convenience

The focusing knob, light control adjustment knob and stage handle are located close together, the user can work with hands on the desk and operate the CX21 with minimal movement.

Mirror unit allows observation withno power sourceAttachment of the optional mirror unit allows observations to be made even when no power source is available. When an externallight source is used, the observation head can be reversed and the slide can be view through a large opening in the arm.

Wooden storage box

A wooden storage box is available as an optional accessory. It is convenient, sturdy and includes a handle r easy carrying.