Pen-F : the best Olympus ever for image quality ?

Steve_ wrote:

I have GH4 (EM1 sensor) and EPL5 (Em5 sensor) and the GH4 sensor is better. not worse. Dynamic range is better and you can really see that instantly when shooting side by side under testing conditions. And nighttime shots of noctilucent clouds uo to 10 s were better on the GH4 compared to EPl5. But the longer exposure problem is correct but it only seems to appear after 15 seconds.

DxO also show GH4 sensor (hence EM1) to be slightly better than EM5.

There's a lot more to GH4 vs EPL5 than sensor. Expecting to extrapolate the EM5 vs EM1 results from it may not be valid. And you'll have to pardon me, but I'm not overwhelmingly motivated by DXO's results.

Well it is the only objective measurement out there. And there are 5 ways to measure ISO and they use highlight clipping point whereas greycard is more usual. In the end their findings are mostly corroborated by "reallife" reviews.

My comparison of course does not qualify and is certainly no proof. What I thought was funny is that I did not expect any difference but on the very first day shooting with the cam (a sundown over sea) immediately noted the better dynamic range. Aftewrwards I tried to meter to my best with both  cams but the DR at base/lower ISO simply was better. I did not look fo rit at all the first time, but it was easy to spot.

I have and shoot an EM5 and EM1, and although the difference really isn't field-relevant the EM5 appears a bit better at 2:1 inspection of the RAW in Lightroom, and has essentially equal DR. By the time you make a JPG, though, you can't notice any difference.

I shoot extended ISO 100 with GH4 which does give it better DR (which seems odd btw). I don't know if Em1 provides it. But yes: the difference is insignificant I'd say.