Sensor sizes

Started Jul 21, 2014 | Questions thread
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Re: Sensor sizes
In reply to boxerman, Jul 23, 2014

Also, why is the four thirds cameras described as such.

Same deal. 4/3 of an inch. But, that refers to the nonexistent tube, so the sensor is actually about 2/3 of that, or about 22.5 mm.

Actually, 4/3 refers to the aspect ratio of the sensor.

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