Freeze motion with exposure, not only the shutter type
A global shutter starts and ends the exposure of all pixels together, which removes the skew a rolling shutter gives a moving part. It does not remove motion blur: blur is set by how far the part travels during the exposure. Choose the exposure time, or a strobe pulse, from the part speed and the size of one pixel on the object.
- Divide the field of view by the pixel count to get the object size of one pixel, then keep part travel during the exposure to about one pixel or less for sharp edges.
- Check the shortest exposure and the trigger-to-exposure timing of the selected model, and whether it has a strobe output to drive the light controller.
- Short exposures need more light. Size the lighting, lens aperture and gain together, and confirm the frame rate at the resolution and region of interest you will use.
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