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Be sure to take note of the exposure settings for future scanning sessions. The same settings should be used when capturing an actual subject, otherwise a new calibration should be created |
Take Measurements
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Measure the distance from the Light to the Grey-Card. This can be done by holding a piece of string from the lens to the subject, and marking the ends, then measuring it with a ruler.
When measuring the distance, include the distance from the front of the lens to the sensor by looking the image plane symbol (ΙΈ). This distance can be measure separately, and added to the distance from the lens to the grey card.
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Capture Image
Once an exposure value has been identified, take a RAW photograph. Save it with a descriptive name. This will be used in the Marso calibration process.