Nanjing AMADA Instrument Co., Ltd. · Nanjing, China [email protected] · +86-15195807515
AMADA Microscopes Request A Quote
Home Products Biological MicroscopeZoom Stereo MicroscopeFluorescence MicroscopeMetallurgical MicroscopePolarizing MicroscopeVideo Digital MicroscopeMicroscope CameraAstronomy AccessoryMicroscope AccessoryMagnifier Knowledge About Contact Request A Quote
Home / Products / Other Series / EX21 Research Compound Biological Micros
EX21 Research Compound Biological Microscope for Scientific Research

EX21 Research Compound Biological Microscope for Scientific Research

EX21 is a compound biological microscope from Nanjing AMADA Instrument designed for scientific research applications in laboratories. It features a stable mechanical stage, adjustable illumination, and a modular design supporting multiple eyepieces and objectives. The microscope supports both transmitted light and phase contrast observation with optional accessories.

  • Stable mechanical stage for precise sample positioning during long-term observation
  • Adjustable illumination with built-in condenser for consistent contrast across samples
  • Modular design allows configuration with various eyepieces and objectives to match research needs
  • Supports phase contrast observation when equipped with phase contrast objectives and annular diaphragms
Request A Quote +86-15195807515

Technical features

  • Mechanical stage with 75 mm × 55 mm travel range
  • Built-in condenser with 1.25 NA, adjustable aperture diaphragm
  • Illumination: 6V 20W halogen lamp, 100V–240V wide voltage input
  • Eyepiece tube: 30° inclined, 180° rotating, 23 mm eyepiece tube diameter
  • Objective nosepiece: 4-position revolver, 360° rotation, 45 mm nosepiece diameter
  • Focus mechanism: coarse and fine focus with 0.002 mm precision, 360° rotation
  • Stage clamp: 12 mm diameter, 1.5 mm thickness, steel construction
  • Base: 180 mm × 130 mm, cast iron, anti-vibration design

Who it is for

  • Research laboratories in academic and industrial settings
  • Procurement officers specifying compound microscopes for lab equipment procurement
  • Distributors sourcing reliable biological microscopes for scientific markets

Specifications

ModelEX21
TypeCompound Biological Microscope
Stage TypeMechanical
Base MaterialCast Iron

Use guide

  • Select objective lenses based on required magnification and resolution (e.g., 100X for cellular detail)
  • Use phase contrast objectives and annular diaphragms when observing transparent specimens
  • Adjust condenser height and aperture diaphragm to optimize contrast and resolution

FAQ

What is the maximum magnification with standard objectives?
With 10X eyepiece and 100X objective, maximum magnification is 1000X.
Can I use oil immersion with the 100X objective?
Yes. The 100X objective is oil immersion type and requires immersion oil for proper use.
Is phase contrast available?
Yes. Phase contrast is available with optional phase contrast objectives and annular diaphragms.
What is the stage travel range?
75 mm × 55 mm in X and Y directions.
What power supply does it use?
100V–240V AC, 50/60 Hz, compatible with global voltages.

Related products