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I'm sold on M4/3. Now what to get?

Started Dec 16, 2015 | Discussions thread
Jorginho Forum Pro • Posts: 15,370
The relation

What you probably misunderstood (unsure) is this relation:

At shutterspeeds of 1/80 to 1/200s (give or take) shuttershock can cause the system to tremble a bit. This will be noted as a somewhat unsharp pics, also when everything is absolutely still and you have OIS and or IBIS on.
Since an electronic shutter is not a real one, it cannot cause any vibration. So when you use it, there can be no shuttershock and the pics would not suffer at all. But some cams with an eshutter (all made by Panasonic I think) drop the bitrate to 10bits vs 12bits. So if you use the eshutter in these cams, the dynamic range deteriorates. Sometimes visibly and sometimes not.
Olympus uses an EFCS (electronic first curtain shutter). It delays the real shutter by 0s (so not measurable) but you can set it to 1/8 s etc. This prevents the shock from the mechanical shutter to influence the IQ. Panasonic bodies sadly lack this. When you have a 10bit eshutter in your cam, you either take the risk of lower IQ via 10bits or shuttershock. The only other alternative is bumping ISO so the shutterspeed are > 1/200s. Which btw of course also influences IQ negatively (only from 100 to 200 ISO this will not be the case).

 Jorginho's gear list:Jorginho's gear list
Olympus PEN E-PL5 Panasonic Lumix DMC-GH4 Olympus E-M1 II Panasonic Lumix G Vario 14-45mm F3.5-5.6 ASPH OIS Panasonic Lumix G 20mm F1.7 ASPH +8 more
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