Does the 4:3 sensor use the circle of light from the lens optimally with aspect ratio 3:2

Started Aug 30, 2013 | Questions thread
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Henrichard
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Does the 4:3 sensor use the circle of light from the lens optimally with aspect ratio 3:2
Aug 30, 2013

The 4:3 sensor is relatively "higher" in aspect ratio than the 3:2 aspect. Hence if aspect ratio 3:2 is selected on an olympus or panasonic 43th camera then some area above and below is cut away (wasted), but then the sensor is not using the circle fully, which means waste of glass.

Panasonic Lumix LX-3 does have a broader sensor, so when switching from 4:3 to the 2:3 aspect ratio or more pronounced to the 16:9 aspect ratio the sensor is broader as the hight goes down. You can actually see that the recorded area get broader as you shift from 4:3 to 3:2 and again to 16:9 - which would not have happen if it just was a cut off from the top and bottom to change aspect ratio.

How is it with the Panasonic GX7 or the Olympus OM-D EM-5 camera. Does it use the sensor optimally like the Panasonic LX-3 or is it simply cut away (waste) of sensor area to change from 4:3 to 3:2 aspect ratio?

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