AMADA INSTRUMENT CO.,LIMITED — Nanjing China
Buying Guide

Choosing a Microscope Camera and the Adapter That Matches It

Sensor size, adapter reduction and interface - how to add a camera without cropping or vignetting the image.

Choosing a Microscope Camera and the Adapter That Matches It

The Sensor Decides the Adapter

A microscope projects a circular image. The camera records a rectangle inside it. If the sensor is smaller than that circle you lose field; if it is larger, the corners go dark. A reducing C-mount adapter, commonly 0.35X, 0.5X or 0.65X, maps the projected circle onto the sensor. Sensor size first, adapter second.

Interfaces and What They Are For

USB2.0 is enough for still documentation. USB3.0 carries higher frame rates for live work and larger sensors. HDMI drives a monitor with no computer at all, which suits production benches. WiFi suits tablets and shared viewing. CCD sensors are still specified where low-light sensitivity matters more than frame rate.

Frame Rate Is a Resolution Trade

Cameras publish their fastest frame rate at their full resolution, and it is usually modest - a 3.0 megapixel USB2.0 camera may deliver around 7 frames per second at 2048x1536. Dropping the capture resolution restores smooth live motion for hand work.

Calibrate Before You Measure

Any on-screen measurement is only as good as its calibration. Use a stage micrometer at each magnification you measure at, and record the factor next to the microscope.

Answers

Frequently Asked Questions

Why is my camera image circular with dark corners?

The sensor is larger than the image circle the adapter projects. A different adapter reduction, or a smaller sensor, fixes it.

Do I need a PC at the bench?

Not with an HDMI camera or an LCD screen microscope. Both put the image on a screen directly.

Ask Before You Order

Send the model you are considering and the task it has to do. We will confirm the fit in writing.