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Larger sensor
APS-C
vs
4/3
More sensor area. Bigger is (generally) better.
-
Bigger pixels
~ 3.91
vs
3.36 microns
Better low-light and dynamic range (all else equal)
-
High resolution composite
Yes
vs
No
Combine multiple shots to form a super hi-res version
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External Mic Jack
Jack
vs
No jack
Improved sound fidelity when shooting video
-
More pixels
24.3
vs
20.3 megapixels
Higher resolution photos
-
Optional anti-aliasing filter
Optional
vs
None
Lets you choose sharper photos or reduced moiré
-
Faster shutter
1/24000
vs
1/16000 sec
Shoot wide open in bright light
-
Higher extended ISO
819200
vs
25600 ISO
Higher extended ISO can give more low-light flexibility