PRODUCT DETAILS
The PS4A Pocket Stereo Viewer is a compact 4X magnification stereoscope designed for stereo image interpretation and terrain analysis. Its portable pocket-size design makes it convenient for both field and office use.
This pocket stereoscope uses adjustable interpupillary distance from 56 mm to 75 mm, allowing users to set a comfortable viewing position. The 125 mm × 125 mm field of view provides a practical viewing area for examining stereo images and identifying terrain details.
Built with durable metal cast alloy holders, the PS4A 4X stereoscope is suitable for professional surveying, mapping, photogrammetry, and other applications that require clear stereo image observation.

Specifications
| Specification | Details |
|---|---|
| Model | PS4A |
| Product Name | Pocket Stereo Viewer / Pocket Stereoscope |
| Magnification | 4X |
| Interpupillary Distance | Adjustable 56–75 mm |
| Field of View | 125 × 125 mm |
| Construction | Durable Metal Cast Alloy Holders |
| Use | Field & Office |
| Application | Stereo Image Interpretation & Terrain Analysis |
Key Features
4X Magnification
The 4X magnification stereoscope provides enlarged stereo viewing for examining image details, terrain features, and survey information.
Adjustable Interpupillary Distance
The interpupillary distance can be adjusted from 56 mm to 75 mm. This allows different users to find a suitable viewing position for comfortable stereo image observation.
Portable Pocket Design
The compact design makes the pocket stereo viewer easy to carry between field sites and offices. It is suitable for surveyors who need a convenient stereoscope for on-site image interpretation.
Durable Metal Construction
The metal cast alloy holders provide a solid structure for regular professional use. This construction is designed to support reliable handling during surveying and mapping work.
Practical Viewing Area
With a 125 mm × 125 mm field of view, the PS4A provides a useful viewing area for stereo photographs and other stereo image materials.
Applications
Surveying and Mapping
Use the PS4A for stereo image interpretation when reviewing survey photographs, mapping information, and terrain features.
Terrain Analysis
The pocket stereoscope helps users examine terrain patterns, elevation-related features, landforms, and other visible details from stereo images.
Photogrammetry
The PS4A stereoscope can be used as a practical viewing tool when interpreting aerial photographs and stereo imagery in photogrammetric workflows.
Field Surveying
Its compact size makes it suitable for field teams that need a portable tool for quick stereo image inspection and preliminary terrain assessment.
Office Image Interpretation
The PS4A can also be used in the office for detailed stereo image review, survey planning, mapping, and project analysis.
Package Includes
- 1 × PS4A Pocket Stereo Viewer
- 1 × Standard Accessories Set
Summary
The PS4A Pocket Stereo Viewer combines 4X magnification, adjustable 56–75 mm interpupillary distance, a 125 × 125 mm field of view, and durable metal construction in a compact design. It is a practical pocket stereoscope for surveying, stereo image interpretation, terrain analysis, mapping, and photogrammetry.
For professionals who need a portable stereoscope for both field and office work, the PS4A provides a simple and convenient solution for viewing and analyzing stereo images.

LTM01-MI Tomahawk Style Mea...