Design the station around the sensor
Above 25 megapixels the sensor, the lens and the interface each set limits. Large sensors need lenses with a large image circle and often a mount bigger than C-mount. Frame rates fall as resolution rises unless the interface is fast. The benefit is one image covering a field that would otherwise need several cameras or a moving stage.
- Check the sensor format and lens mount of the selected model first; they decide the lens family, the working distance and much of the station size.
- Compare the full-resolution frame rate and the interface with the takt time, and plan the computer memory and processing for very large images.
- Even illumination over a large field is hard. Size the light for the complete field and check corner brightness with the chosen lens and aperture.
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