Ergoscope® ES-100 Finite Stereo Microscope 6.7X – 45X


Starting at $1,800.00$1,440.00

The new optics design in the Ergoscope® ES-100 allows the microscope to deliver high-definition images, good contrast, and a wide Field of View. The combination of its compact footprint, large working distance, and variety of functions enables the ES-100 to be used in a variety of different applications.

Ergoscope ES-100 Finite Stereo Microscope Specifications

  • Zoom Range of Zoom Body: 0.67x-4.5x
  • Zoom Ratio: 1:6.7
  • Magnification: 6.7x-45x
  • Field of View: 31mm-4.9mm
  • Working Distance: 100mm
  • Interpupillary adjustment: 55mm-75mm
  • Eyepiece Dioptric Correction: ±5° Diopter
  • Binocular angle of view: 45°
  • Optional Eyepieces: 10x, 15x, 20x, 25x and 30x
  • Optional Auxiliary Lenses: 0.3x, 0.5x, 0.75x, 1.5x and 2.0x
  • Warranty 5 Years Mechanical – Optical


About the Ergoscope ES-100 Finite Stereo Microscope

The Ergoscope® ES-100 Zoom Stereo Microscope sets a new standard in microscopy with its innovative optics design, delivering high-definition images, excellent contrast, and a wide field of view. These features make the ES-100 a versatile tool suitable for a variety of applications, thanks to its compact footprint, large working distance, and multifunctional capabilities.

The ES-100’s new optics design enhances image clarity and detail, providing users with a crisp, clear view of their specimens. This is particularly beneficial for tasks requiring precise observation and analysis, such as in industrial settings, research laboratories, and educational institutions.

With a Zoom Range of 0.67x-4.5x and a Zoom Ratio of 1:6.7, the ES-100 offers magnification levels ranging from 6.7x to 45x. The microscope’s Field of View spans from 31mm to 4.9mm, providing a broad view of the specimen under observation. The Working Distance of 100mm ensures comfortable viewing and manipulation of samples.

The ES-100 is designed for user comfort and convenience, with an Interpupillary Adjustment range of 55mm to 75mm, accommodating various users’ interpupillary distances. The microscope also features Eyepiece Dioptric Correction of ±5° Diopter, allowing users to adjust the focus to suit their individual eyesight requirements.

For added versatility, the ES-100 is compatible with a range of optional Eyepieces, including 10x, 15x, 20x, 25x, and 30x magnification. Additionally, optional Auxiliary Lenses of 0.3x, 0.5x, 0.75x, 1.5x, and 2.0x magnification further enhance the microscope’s capabilities, allowing users to customize the magnification and field of view to suit their specific needs.

Backed by a 5-year warranty for both mechanical and optical components, the Ergoscope® ES-100 offers peace of mind and assurance of long-term reliability. This warranty underscores the manufacturer’s commitment to quality and customer satisfaction, making the ES-100 a trustworthy and dependable investment for professionals and educators alike.

In conclusion, the Ergoscope® ES-100 is a cutting-edge microscope that combines advanced optics with a user-friendly design, making it an ideal choice for a wide range of applications. Its high-definition imaging, wide field of view, and versatile magnification options make it a valuable tool for professionals seeking precision and reliability in their microscopy needs.


Microscopes and components have two types of optical path design structures.
One type is finite optical structural design, in which light passing through the objective lens is directed at the intermediate image plane (located in the front focal plane of the eyepiece) and converges at that point. The finite structure is an integrated design, with a compact structure, and it is a kind of economical microscope.
Another type is infinite optical structural design, in which the light between the tube lens after passing the objective lens becomes “parallel light”. Within this distance, various kinds of optical components necessary such as beam splitters or optical filters call be added, and at the same time, this kind of design has better imaging results. As the design is modular, it is also called modular microscope. The modular structure facilitates the addition of different imaging and lighting accessories in the middle of the system as required.
The main components of infinite and finite, especially objective lens, are usually not interchangeable for use, and even if they can be imaged, the image quality will also have some defects.

The separative two-objective lens structure of the dual-light path of stereo microscope (SZ/FS microscope) is also known as Greenough.
Parallel optical microscope uses a parallel structure (PZ microscope), which is different from the separative two-object lens structure, and because its objective lens is one and the same, it is therefore also known as the CMO common main objective.

As seen in Quality Magazine
Weight 15.00 lbs
Dimensions 14 × 14 × 16 in

2x-270x with optional lenses

Working Distance


Zoom Ratio


Field of View


Interpupillary Distance


Diopter Adjustment


Zoom Body


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Auxiliary Lenses

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