How can I compute the size of the camera sensor which is involved in recording video

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gipulen New Member • Posts: 2
How can I compute the size of the camera sensor which is involved in recording video

THe resolution of the Sony Cyber-shot DSC-RX100 is 5472 x 3648 pixels.Sensor width = 13.20 mm, Sensor height = 8.80 mm, aspect ratio=1.5. However, when taking videos the resolution changes to 1,920 x 1,080 (16:9 aspect ratio). SO that suggests that the camera crops part of the sensors when taking videos. Is it possible to know/compute the size of the part of the sensor that is involved in taking videos?

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