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Superb image clarity coupled with Olympus’ renowned reliability and rigidity
Plan objectives are packaged as standard, providing image flatness that is among the best in this class

The CX21i is equipped with the same UIS2 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.

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 CX21i with minimal movement.

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.

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.

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.

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.

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.

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.

Wooden storage box

A wooden storage box is available as an optional accessory. It is convenient, sturdy and includes a handle r easy carrying. Dimensions: 264(W) X 305(D) X 474(H)mm

Bright, uniform illumination

The CX21i'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.

Ultra-smooth, quadruple revolving nosepiece

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

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 CX21i with minimal movement.

Item Specifications
Optical System UIS (Universal Infinity System) optical system
Illumination System Built-in transmitted illumination system
6V20W halogen bulb
100-240V 50/60Hz universal voltage
Focusing Stage height movement (coarse movements stroke 20mm)
Fine focus graduation: 25 υm
Revolving nosepiece Fixed quadruple nosepiece
Stage Wire momvement mechanical fixed stage: 120*132 mm
Traveling range: 76mm(X)*30mm(Y)
Single specimen holder
Observation tube 30 inclined binocular tube
interpupilary distance adjustment range 48-75mm
Condenser Abbe type with apertuer iris diaphragm N.A.:1.25
Objective lens Plan Acromatic objectives (anti-fungun)
4X N.A.:0.10 W.D.: 22.0mm
10X N.A.:0.25 W.D.: 10.5mm
40X N.A.:0.65 W.D.: 0.56mm
100X N.A.:1.25 W.D.: 0.13mm (option)
Eyepiece (10X) Field Number(F.N.): 18 (anti-fungun)
optional accessories Mirror unit, 15X eyepiece (F.N. 12, anti-fungus), cord rest, wooden storage box, filar micrometer, wire pointer, filter holder, darkfeild stop