Originally Posted by Ian
Can I be sure what you mean - do the bricks in the RT developed crop you posted look normal or not? They look OK to me. But then they are not in a brightly lit situation which is where the problem seems to lie and they are not from an image that has been pushed by two stops.
The effect I refer to, I guess would be much clearer visible if we would have OM-D_5 versus PEN / E-5 samples with HG glass available.
As I'm not aware of any such apropriate RAW samples, I'll try to explain as good as I can:
Please have a look at the up-sampled crops below (taken from the RawTherapee crop I already did show)
a) To me the upper image is way too soft / sleek / smoothed *especially* as the color shading within fairly similar areas is concerned (the bricks that is).
Edge contrast on the other hand is ok, as far as I can tell (remember its plain "default" setting of RawTherapee).
b) The lower image does show - in contrary – that minute details got IMO overly exaggerated (presumably to counter weight too highish NR that otherwise would soften the image too much)
This is creating IMO an artificial touch overall, also with respect to those overly „highlighted“ details that appear to be non-related.
c) Please remember what I've shown regarding noise comparison with my normalized black&white crops. (in the other thread http://www.fourthirds-user.com/forum...t=10757&page=3
There it was evident, that overall noise of the OM-D_5 sensor was not particularly outstanding (just very slightly above GH2), the main noise „advantage“ of the new sensor lies in higher suppression of chroma noise.
So adding a + b + c for me led to the conclusion, that the „improvement“ for the OM-D_5 in (chroma) noise is basically a software fake of that particular sensor – or lets say: a simple trade off to detail reconstruction.
No free lunch here, IMO.
Again, I suggest to not take my word for it regarding that IMO sensor specific „overly polished“ image appearance – there are already enough architecture images out there to get the glimpse (certainly the above crops – showing so few pixel - are not any well suited for this)
The most interesting thing is – besides such IMO inferior images - there are also pretty and failrly well balanced pix available too, some at Robin Wong blog, some elsewhere or this one for example:
taken from here:
The main difference may lie in pattern recognition routines that may act too aggressively and too unpredictable if the image provides the „right“ trigger
as an aside:
It may be worth to note that the linked portrait was IMO deliberately adjusted in colors to improve on the pale / bluish appearance of the rest of samples there (as "usually" delivered by this sensor).