Originally posted by RonHendriks1966 Great shot's always difficult to compare, because of not yet firmware version 1.0 but stil as a trial-version.
I had the chance on wednesday to try the 645D. Took some shots at iso-1000 didn't change this.
I’m in awe at this being Iso 1000 from a CCD sensor. I know that sensor size correlates to noise, but with this quality, you could easily push one stop, and then have actual Iso 3200. Didn’t know Medium Format could do this well at higher Iso. And this is just from JPEG.
What aperture was it ?
Regarding the K5, all the numbers we've gone over the last weeks, are one thing. But I’m impressed now that I see actual photos. Iso 3.200 looks very good. And Iso 12.800 would be useable too, considering it is from JPEG and early firmware. Thanks a lot for taking the shots and posting them.
The Raw 51.200 Iso shot, this could easily be converted to B&W, if out on night safari stalking wildlife in Africa.
Originally posted by JohnBee Thanks
I too tried Noiseware Pro and a host of other NR tools. Mainly to see how they would response to the image grain. However, after a few trials, I settled on a blend of ACR Chroma/Luma and finished off with Denoise afterward. So a little of both.
One of the main issues I've found with reference to the grain in this particular sample is that external noise reduction systems don't seem to recognize the noise patterns as actual noise. If I had to guess, I'd say that the grain(cross hatch noise) is too large to be effectively identified as noise by the actual software.
So to test this theory, I interpolated the image to 26MP in ACR, to effectively shrink image grain size and ended-up with the following:
K-5, ISO51200 (ISO102400 equivalent), Early ACR sampling:
It's not a huge leap over the previous sample, though it is an improvement.
So at least we will have that much to look forward too, when better samples do come around
I think this one is way better, than the first one you posted.
ISO 102.400 equivalent, this is almost difficult to come to terms with.
If you added 2 EV, isn’t that two stops ? So that it would be more like Iso 152.600 ?