Compound microscope Deltaoptical DO-3330 — BioLight 300, up to 300× magnification, LED illumination

Deltaoptical DO-3330 — BioLight 300 is a compound microscope engineered for educational and hobby microscopy. It offers optical magnification up to 300× and integrated LED illumination that provides steady, adjustable light for viewing prepared slides and small specimens. The instrument includes multiple objective lenses, a mechanical stage for precise specimen positioning, and both coarse and fine focus controls to achieve sharp images across different magnifications.

Advantages

The BioLight 300 delivers a combination of compact design and practical functionality suited to classroom and home laboratory use. Its LED illumination ensures consistent brightness with low power consumption and minimal heat generation. Multiple objective lenses and graduated mechanical staging allow systematic observation and reproducible positioning of samples. The focusing controls provide smooth, accurate adjustments appropriate for beginners and intermediate users.

Suitable for

• Student laboratory exercises and biology classes
• Hobby microscopy and specimen observation at home
• Demonstrations of microscopic structures during lessons or workshops
• General slide inspection and routine classroom research

Key specifications

• Optical magnification: up to 300×
• Illumination type: integrated LED with adjustable intensity
• Optical configuration: compound microscope with multiple objective lenses
• Viewing head: options for monocular or binocular viewing (model-dependent)
• Focus system: coarse and fine adjustment controls
• Stage: mechanical stage for precise X–Y specimen movement
• Sample compatibility: prepared microscope slides and small transparent specimens

How to use

Place the microscope on a stable, level surface and connect the power source if required. Mount a prepared slide on the mechanical stage and secure it with the stage clips. Start with the lowest-power objective lens and center the area of interest using the stage controls. Use the coarse focus knob to bring the specimen into general focus, then refine the image with the fine focus knob. Adjust the LED illumination intensity to achieve a clear contrast without glare. Switch to higher-power objectives as needed, refocusing each time with fine adjustments.

Recommendations

For classroom use, begin lessons with the lowest magnification to familiarize students with specimen orientation and stage controls. When observing stained slides or delicate samples, reduce light intensity to avoid bleaching or overheating. Regularly clean lenses with appropriate lens tissue and keep the mechanical stage free of dust to maintain image quality.