Stereo microscope Deltaoptical DO-3681 with 90× magnification and LED illumination

Deltaoptical DO-3681 is a stereo microscope that delivers up to 90× magnification with integrated LED illumination. It is designed for three-dimensional observation of samples, providing stereo vision that helps with depth perception and precise manipulation. The optical design and illumination system support detailed inspection of surfaces, small components and biological specimens where spatial context is important.

Advantages

The stereo optical path provides separate images to each eye, producing a true three-dimensional view that improves accuracy when examining or working with small objects. Built-in LED illumination ensures consistent, cool light with low maintenance and stable color rendering. The instrument’s magnification range up to 90× combined with its ergonomic viewing angle allows detailed observation while reducing eye strain during extended use.

Suitable for

• Hobby and model making requiring detailed assembly or inspection
• Educational laboratories for teaching microscopy and sample manipulation
• Electronics inspection and repair, including PCB and component checking
• Biological specimen observation where surface detail and depth are relevant

Key specifications

• Magnification: up to 90× with stereo viewing
• Illumination: integrated LED light source for bright, stable lighting
• Viewing mode: binocular stereo optical system for depth perception
• Application type: designed for close-up observation and manipulation of small objects
• Ergonomics: angled binocular head to improve comfort during use

How to use

Place the specimen on the microscope stage or a stable surface beneath the objective lenses. Switch on the integrated LED illumination and adjust the light intensity if a control is provided. Start with the lowest magnification to locate the area of interest, then increase magnification up to 90× for detailed viewing. Adjust the interpupillary distance and diopter settings (if available) to obtain a sharp, comfortable stereo image. Use fine focusing to bring surface features into clear view and, when necessary, reposition or illuminate the specimen from different angles to reveal additional detail.

Recommendations

For consistent results, work in a stable environment with minimal vibration and avoid direct sunlight on the optics. Clean optical surfaces with appropriate lens tissue and keep the LED housing free of dust. When inspecting electronics, use antistatic precautions. Store the microscope covered when not in use to protect the optics and mechanical parts.