INSIZE Zoom Stereo Microscope — Binocular & Trinocular | ISM-ZS50 / ISM-ZS50T
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INSIZE Zoom Stereo Microscope
The INSIZE ISM-ZS50 Zoom Stereo Microscope is a professional stereo inspection microscope designed for detailed three-dimensional viewing, inspection, assembly, and examination of components and materials.
Featuring a 0.8X–5X continuous zoom objective, 10X wide-field eyepieces, a 1:6.3 zoom ratio, and a 115mm working distance, the ISM-ZS50 provides a flexible optical platform for inspection applications where depth perception and a wide field of view are important.
The system is available in two configurations:
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ISM-ZS50 — Binocular
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ISM-ZS50T — Trinocular
Both configurations use the same 0.8X–5X zoom optical system and are designed for professional inspection and laboratory applications.
Key Features
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0.8X–5X zoom objective — Provides continuously variable magnification for inspecting both larger areas and smaller details.
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1:6.3 zoom ratio — Provides a broad usable magnification range without requiring frequent objective changes.
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10X wide-field eyepieces — Provides a 22mm field of view for comfortable observation.
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115mm working distance — Provides useful clearance between the objective and workpiece during inspection and manipulation.
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Adjustable pupil distance — 55–75mm adjustment accommodates different users.
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±5 diopter adjustment — Allows individual focus correction through the eyepieces.
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Reflected and transmitted LED illumination — Provides adjustable lighting for both surface and transmitted-light inspection.
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100mm working stage — Supports small components and specimens during inspection.
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Binocular or trinocular configuration — Select the binocular version for direct visual inspection or the trinocular version when camera integration is required.
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Optional auxiliary objectives and eyepieces — Expands the microscope's working range for specialized inspection applications.
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Optional dividing eyepiece — Provides 0.1mm/div. graduations for applications requiring visual dimensional reference.
Professional Stereo Inspection
Unlike a conventional compound microscope, a stereo microscope provides a three-dimensional visual perspective of the workpiece.
This makes the ISM-ZS50 particularly useful for applications involving:
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Component inspection
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Assembly and rework
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Surface examination
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Small-part inspection
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Electronics inspection
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Mechanical component examination
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Manufacturing quality control
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Laboratory work
The relatively long 115mm working distance also provides room for manipulating components beneath the objective while viewing the workpiece.
Optical Performance
The ISM-ZS50 uses a 0.8X–5X zoom objective with a 1:6.3 zoom ratio.
The supplied 10X wide-field eyepieces provide a 22mm field of view, while the adjustable 55–75mm pupil distance and ±5 diopter adjustment allow the microscope to be configured for individual operators.
The zoom system allows the operator to move between lower magnification for locating and positioning a feature and higher magnification for detailed inspection.
Binocular vs. Trinocular Configuration
The ISM-ZS50 family is available in two optical-tube configurations.
| Model | Optical Tube | Eyepiece | Objective | Zoom Ratio |
|---|---|---|---|---|
| ISM-ZS50 | Binocular | 10X WF | 0.8X–5X | 1:6.3 |
| ISM-ZS50T | Trinocular | 10X WF | 0.8X–5X | 1:6.3 |
ISM-ZS50 — Binocular
The binocular configuration is designed primarily for direct visual inspection through two eyepieces. It is an excellent choice for routine inspection, assembly, repair, and laboratory observation where camera output is not required.
ISM-ZS50T — Trinocular
The trinocular configuration adds a third optical port for camera integration. This makes the ISM-ZS50T the preferred configuration when inspection images, documentation, video, or digital microscopy are required.
INSIZE lists compatible digital camera options including the ISM-CM20, ISM-CM63, ISM-ZS70-S, and ISM-KM600, with the appropriate camera adapter.
Adjustable LED Illumination
The ISM-ZS50 incorporates both reflected and transmitted LED illumination.
Reflected Illumination
Reflected light illuminates the surface of the workpiece and is useful for examining:
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Machined surfaces
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Components
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Printed circuit boards
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Mechanical parts
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Surface defects
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Assembly details
Transmitted Illumination
Transmitted light illuminates the specimen from below and can be useful when examining transparent, translucent, or edge-defined specimens.
Both illumination systems are adjustable, allowing lighting conditions to be optimized for the specimen being inspected.
100mm Working Stage
The microscope includes a Ø100mm glass plate and a Ø100mm white/black plate as standard equipment.
The interchangeable plates provide different backgrounds and viewing conditions depending on the specimen and inspection application.
Available Accessories
INSIZE offers several accessories for expanding the capabilities of the ISM-ZS50 platform.
| Accessory | Model | Purpose |
|---|---|---|
| 0.5X Auxiliary Objective | ISM-ZS50-OB05X | Lower magnification / expanded field of view |
| 2X Auxiliary Objective | ISM-ZS50-OB2X | Higher magnification |
| 10X Dividing Eyepiece | ISM-ZS50-EPD10X | 0.1mm/div. graduation |
| WF15X Eyepiece | ISM-ZS50-EP15X | Increased magnification |
| WF20X Eyepiece | ISM-ZS50-EP20X | Higher magnification |
| LED Ring Light | ISM-ZS-RL | Additional reflected illumination |
| Auxiliary Objective Adapter | ISM-ZS200-ADAPTER | Required for 0.5X objective |
| Digital Cameras | Various | Imaging and documentation |
The 0.5X auxiliary objective must be used with the ISM-ZS200-ADAPTER.
Applications
The INSIZE Zoom Stereo Microscope is suitable for:
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Precision component inspection
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Manufacturing quality control
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Electronics inspection
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PCB inspection
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Mechanical assembly
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Small-part inspection
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Machined component inspection
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Surface examination
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Tool inspection
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Repair and rework
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Laboratory inspection
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Research and development
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Jewelry and precision product inspection
Industries
Common applications include:
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Precision manufacturing
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Electronics manufacturing
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Automotive
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Aerospace
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Medical-device manufacturing
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CNC machining
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Tool and die
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Plastics manufacturing
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Jewelry manufacturing
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Laboratory and research
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Quality control
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General industrial inspection
Technical Specifications
| Specification | ISM-ZS50 / ISM-ZS50T |
|---|---|
| Optical Tube | Binocular / Trinocular |
| Eyepiece | 10X Wide Field |
| Eyepiece Field of View | Ø22mm |
| Objective | 0.8X–5X Zoom |
| Zoom Ratio | 1:6.3 |
| Pupil Distance | 55–75mm |
| Diopter Adjustment | ±5 diopter |
| Working Distance | 115mm |
| Maximum Workpiece Height | 75mm |
| Illumination | Adjustable reflected and transmitted LED |
| Working Stage Diameter | Ø100mm |
| Power Supply | 110/220V, 50/60Hz |
| Dimensions | 290 × 260 × 480mm |
| Weight | 4.9kg |
Standard Equipment
The standard ISM-ZS50 / ISM-ZS50T configuration includes:
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Main microscope unit — 1 pc
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WF 10X eyepieces — 2 pcs
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Ø100mm glass plate — 1 pc
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Ø100mm white/black plate — 1 pc
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Anti-dust cover — 1 pc
The LED ring light is available as an optional accessory.
Choosing the Right Configuration
Choose the ISM-ZS50 if:
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Direct visual inspection is your primary requirement
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You do not require an integrated camera
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The microscope will primarily be used for inspection, assembly, or rework
Choose the ISM-ZS50T if:
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You need to connect a digital camera
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Inspection images need to be captured or documented
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Multiple users need access to the optical image
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You plan to integrate digital imaging into the inspection workflow
For applications requiring a larger working height, INSIZE also offers the 5106-M50 / 5106-M50T universal-stand versions, which increase maximum workpiece height to 300mm.
Technical Documentation
For complete manufacturer specifications, standard equipment, and available accessories:
INSIZE ISM-ZS50 / ISM-ZS50T Technical Documentation:
https://www.insize.com/pdf-viewer?=/PDF/ISM-ZS50.pdf
Need Help Selecting a Stereo Microscope?
Microscope selection depends on the required magnification, working distance, workpiece size, illumination requirements, and whether digital imaging is required.
Contact CRB Supply before ordering if you need help choosing between the binocular and trinocular configurations or determining which objectives, eyepieces, illumination, or camera accessories are appropriate for your inspection application.