Use a rolling shutter where the scene holds still
A rolling shutter exposes the sensor row by row, each row starting slightly after the one before. A part that moves during readout appears skewed or bent. With a stationary part, a stop-and-go machine or a microscope stage, that does not matter, and rolling shutter sensors often offer small pixels and high resolution.
- Decide whether the part or the camera moves during the exposure and readout. If it does, compare a global shutter model before committing.
- Check whether the selected model offers a global reset release mode, and remember that it needs a strobed light in a dark enclosure to be effective.
- Small pixels ask more of the lens. Compare the pixel size with the resolving power of the lens and check the image circle against the sensor format.
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