I hear a lot of chatter on the other boards on how some manufacturers are pulling ahead of others in terms of things like low light sensitivity and dynamic range. E.g., it would appear that Sony and Nikon have superior sensor technology, and Canon seems to be the bottom of the pile. But where does Olympus stand, compared to its immediate competitor (Panasonic) and against the other manufacturers?
Right now it would appear that generally:
Sony>Nikon>....>Canon but where is Olympus?
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http://markteng.500px.com/
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Why do you bother? The image quality of current m4/3 cameras is excellent
That is very much a matter of opinion Thomas , I would love a much lower true base ISO for m43 , I find even at base ISO m43 shadow and sky noise is pretty poor,with poor RAW flexibility { relatively speaking}. I am not in the least interested in the comedy high ISO settings that camera manufacturers are sticking in the specs and wish that they would instead focus on low ISO maximum image quality.
Agree 100%. They should make some progress at base ISO.
Here are noise profiles from various cameras. I've downloaded the RAW file at base ISO from the DPreview Studio Shot comparaisons (same scene for all) and analyzed though Photo Ninja, which has a nifty too to draw noise profile from the analyzed RAW.

Olympus PEN F (20 Mpix 4/3 sensor)

Panasonic GX8 (20 Mpix 4/3 sensor)

Olympus E-M1(16 Mpix 4/3 sensor)
[ATTACH alt="Sony RX100IV (20Mpix 1" sensor)"]1415945[/ATTACH]
Sony RX100IV (20Mpix 1" sensor)

Fuji XPro2 (24Mpix APS-C sensor)

Fuji X-T1 (16Mpix APS-C sensor)

Sony A7 RII (42 Mpix FF sensor)
From these profiles, it's clear that m4/3 noise performance at base ISO isn't that impressive.