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High Performance for Education and the Laboratory -
the student microscope of your choice

Robust, easy to operate, equipped with good optics and, above all, reasonably priced.

Primo Star has been developed with long-term use and great durability in mind. It incorporates all the experience gathered by Carl Zeiss in the field of light microscopy, adapted specifically for educational purposes.

Easy to operate
Quality optics from Carl Zeiss
Numerous innovative solutions
Flexible through its modularity
Excellent price/performance ratio

Primo Star is available in different variants. The right version for every set of requirements. This microscope – together with its many practical accessories – can be used for education, in the laboratory, doctors’ practice and in the field. Genuine ZEISS

Technical Data

Optical system: Color-corrected infinity optics
Parfocal distance: 45 mm
Tube length: 180 mm
Two stand variants: Full-Koehler and Fixed-Koehler
Magnifications: 40x to 1000x for visual observation
4x to 100x for camera observation
Eyepiece tubes: Swiveling Siedentopf tube with upper and lower position:
upper position offers approx. 40 mm extra viewing height
Adjustable interpupillary distance: 48 mm-75 mm
Tube can be rotated 360º
30º viewing angle (ergonomic angle)
Binocular tube and binocular phototube
50%:50% (vis:doc)
Several photo adapters available for phototube
Eyepieces: WF 10x/18 Br. foc.
WF 10x/20 Br. foc.
Eyepiece pointer can be retrofitted
All eyepieces anti-fungus treated
Nosepiece: 4x, inclined backwards
Objectives: Plan-Achromat 4x/0,1 AA:
6,50 mm
Plan-Achromat 10x/0,25 AA:
4,39 mm
Plan-Achromat 40x/0,65 AA:
0,48 mm
Plan-Achromat 100x/1,25 AA: 0,13 mm
Plan-Achromat 40x/0,65 Ph2 AA: 0,48 mm
Condenser: Abbe condenser 0.9/1.25
Holder for phase contrast and darkfield sliders
Two variants for fields of view 18 mm (Fixed-Koehler)
and 20 mm (Full-Koehler)
Illumination: Modular illumination concept with drawer
HAL (30 W/6 V), LED (3 W/6 V, roughly corresponding to brightness of 20 W HAL)
Stage: Stages available with either right-hand or left-hand operation
Area of stage: w x d: 140 mm x 135 mm
Travel range: w x d: 75 mm x 30 mm
z-drives: Fine drive: 0.3 mm/rot.
Coarse drive: 4 mm/rot.
Total travel range: 15 mm

Carrying case, microscope mat, eyepiece pointer
Tilting mirror (only for Fixed-Koehler stand variant)
Phase contrast equipment
(Plan-Achromat 40x/0.65 Ph2 + Ph2 slider)
Darkfield equipment (DF slider 0.65)
Camera adapters: C-mount adapter 1/2"; C-mount adapter 2/3"; digital camera adapter
AxioVision LE with Canon camera driver
Norms and standards met: CE, CSA, UL, ICC, ISO 9001, IvD
All optical components are anti-fungus treated

German Technical Inspection Authority (TUV) approved user friendly ergonomics ensure maximum comfort during operation and reduce the risk of muscular disorders in neck and shoulders even over a prolonged stretch of time. A 50W HAL lamp is integrated in the stand, with its high light efficiency providing homogeneous illumination. An energy saving LED alternative is available.

The system provides flexibility in selecting and switching between various contrasting methods, catering for a wide spectrum of applications. The 5x revolving nosepiece for bright and darkfield keeps all relevant objectives handy. A 4 position reflector turret with push&click contrast modules creates flexibility in selecting and switching between contrast methods. Note that Axio Lab.A1 is available with differential interference contrast (C-DIC), a technique that delivers excellent contrast in phase objects and other samples poor in intensity contrast.

A comprehensive range of components is available for Axio Lab.A1 in order to configure the system for your application in metallography and general material lab microscopy.




Type Upright compound microscope
Configuration Integrated reflected light illumination (halogen reflector lamp HAL 50/12V 50W, optional LED)
Contrasting techniques Reflected light: Brigthfield, Darkfield, Differential Interference Contrast (DIC), Polarization
Objectives EC Epiplan objectives
  • Nosepiece: 5 position nosepiece, for brightfield and darkfield, M 27
  • Reflector turret: 4 position for Push&Click modules
  • Stage:Mechanical stage, 75 x 30 mm, coaxial drive right hand side, anodized surface hardcoated, sample holder included
  • Power supply: Internal 12V DC 50W, stabilized 100…240V AC/50
  • Focus: Manual, coaxial coarse / fine drive, 30 mm travel range
  • Filter silder: 2 positions; 25 mm diameter
  • Eyepieces: PL 10x/20 Br. Foc., PL 10x/22 Br. Foc.


The innovative advances incorporated in this microscope are obvious not only in the color of the instruments and their compact, original design, but also, and most particularly, in their attractive price - all the result of state-of-the-art production technologies. Sturdy, hard-wearing technology, the very easy operation of all major function controls and no compromises whatsover in image definition and brilliance - that is the best way to describe this stereomicroscope from Carl Zeiss. In addition to the four basic models, optionally with a zoom system or adjustable fixed magnifications, the compact Stand C and selected accessories (e.g. image documentation, darkfield, and many more) are other outstanding features.

The patented zoom system of the Stemi DV4 (Double Lens Vario, zoom factor 4) guarantees high-resolution, brilliant images from overview (8x) to detail (32x). An exceptional feature in this price category: The image remains precisely in focus over the entire zoom range. The Stemi DV4 SPOT fiber-optic, cold-light illuminator additionally integrated into the microscope body ensures a fully illuminated object field at all times.