« on: November 10, 2011, 06:14:31 PM »
We'll have to wait for neuro to confirm but I think he shot RAW and used the same software to process the RAW files so any noise reduction, and he may not have applied any, would be the same I think?
If you use Canon's included raw conversion software (dpp), it does things differently to different raw files based on the camera model number. s95 raw files clearly (if you've compared them side by side) get a very, very different kind of noise reduction applied to them than the s100 raw files do. (If you want to see examples, see the thread I linked to, there's a bunch of dpp converted raw files for both the s95 and s100 there, the difference in the kind of noise reduction being applied is very obvious).
Fair enough if that's the case. I tried to follow your links but the images don't display rather it comes up as "gallery image not found" so I'll try again later.
I did notice your statement at the outset that said "converted in dpp using whatever the defaults were". So dpp applies different default conversion settings specific to each camera. Presumably, those defaults are chosen to optimize the final image, but to what standard? Wouldn't it be a more apples-to-apples comparison to use the same conversion settings and possibly turn off any software NR when trying to compare the noise performance of one camera to another? The final image is what matters so it might be appropriate to apply the optimal NR algorithms and compare images particularly if for some reason the NR algorithms would work better on one file than the other but I'm not sure that's the case.