OMAX A3550U3 5MP USB 3.0 Digital Microscope Camera with 0.01mm Calibration Slide

Overview

The OMAX A3550U3 is a compact 5MP digital camera designed to pair with your microscope, delivering crisp color images with detailed texture across a broad range of specimens. Built around a 1/2.5-inch Aptina color CMOS sensor, it captures up to 2560x1922 pixels with a 2.2 μm pixel pitch, balancing detail with sensitivity.

What makes it perform well

With an SNR of 38.5 dB and a dynamic range of 67.74 dB, the camera preserves nuance in bright highlights and deep shadows, giving faithful representations of stained slides, mineral specimens, or small organisms. Different frame rates let you choose steady full-resolution previews or faster sequences for live observation: 14.2 fps at 2560x1922, 38.3 fps at 1280x960, and 101.2 fps at 640x480.

The USB 3.0 interface supports USB 2.0 compatibility for flexible installations and broad compatibility across systems. It is powered directly through the USB connection, reducing cable clutter and setup steps. Mounting options include C-mount or eyepiece tubes (23.2 mm, 30 mm, 30.5 mm), expanding compatibility with many existing microscopes.

Calibration and accessories

The camera ships with a precision 0.01 mm calibration slide (1 mm / 100 divisions) to help you measure structures consistently, especially helpful when documenting dimensions across samples. The included 0.5x reduction lens fits typically sized eyepiece tubes of 23.2 mm, and adapters are provided for 30 mm and 30.5 mm tubes, enabling quick pairing with familiar configurations.

Practical uses and workflows

Use the OMAX A3550U3 for classroom demonstrations, lab documentation, or remote teaching sessions where clear, repeatable imagery matters. Its compact dimensions (68 x 68 x 45 mm) and USB-powered design keep your workstation tidy, while the broad operating range (-10°C to 50°C) supports both controlled labs and field-like environments.

• Key capabilities: high-resolution color imaging, wide dynamic range, flexible frame rates, USB 3.0 connectivity
• Mounting and compatibility: C-mount or multiple eyepiece sizes, 0.5x reduction lens, calibration slide included, adapters available

Compatibility and setup are straightforward, with support for Windows 8 and Windows 10, Mac OS X, and Linux, helping you integrate the camera into diverse workflows. By offering a balance of resolution, sensitivity, and ease of use, the A3550U3 opens possibilities for detailed documentation and reproducible results.