The EXC-250 Trinocular Microscope from Accu-Scope is a modern laboratory workhorse engineered for reliability, optical clarity, and everyday ease of use. Designed as the successor to the 3000-LED series, the EXC-250 delivers upgraded optics, improved ergonomics, and full digital-imaging readiness—making it an excellent choice for clinical labs, education, and research environments.

Exceptional Optical Performance

The advanced Infinity Plan achromat optical system paired with a super-bright 5-watt LED illuminator produces crisp, flat, high-contrast images across the full field of view. With a best-in-class 20 mm field, the EXC-250 excels in brightfield, phase contrast, and 100x oil immersion applications.

Built for the Lab and Classroom

A durable cast-alloy frame, compact footprint, and intuitive controls make this microscope ideal for high-usage environments. Thoughtful conveniences like an integrated carry handle, cord wrap, and built-in USB power port for charging mobile devices add day-to-day practicality.

Ergonomics That Reduce Fatigue

User comfort is front and center with a 30° inclined trinocular viewing head, low-positioned coaxial focus controls, and low-profile stage controls—all designed to minimize strain during extended sessions.

Digital Imaging Ready

The standard trinocular head with a 50:50 light split supports Excelis™ cameras and USB, HD, or Wi-Fi imaging solutions, making the EXC-250 ideal for documentation, instruction, and collaborative viewing.

Expandable & Versatile

The EXC-250 supports phase contrast, darkfield, and polarization upgrades without compromising image quality, allowing the system to grow with your application needs.

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Standard Configuration & Specifications

• Trinocular microscope with Infinity Plan Achromat objectives

• Trinocular viewing head, 30° inclined, 360° rotatable

• HWF Plan 10x/20 mm focusing eyepieces (paired; one with pointer), with eyeguards

• Reversed quadruple nosepiece

• Infinity Plan achromat objectives: 4x, 10x, 40xR, 100xR oil

• Mechanical stage, 140 × 132 mm

• Abbe condenser, N.A. 1.25 with iris diaphragm (slider slot included)

• Coaxial coarse and fine focus controls

• 5-watt variable LED illumination

• Includes dust cover, power cord, immersion oil, and instruction manual

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Product Highlights

✔ Successor to the 3000-LED — built for modern lab demands
✔ Enhanced optics with a 20 mm field of view
✔ Long-life 25,000+ hour LED
✔ Built-in USB power for mobile devices
✔ Comfortable, fatigue-reducing ergonomic design
✔ Fully compatible with digital imaging systems

If you would like to add a camera to your system we have lots of options here