Raw 2.3 update & Canon 50D

I was glad to see support for the 50D added with this new update, but after some quick testing I am disappointed with Apples conversion on pictures taken at 800 iso or faster compared to DPP. Aperture shows a lot more noise at the faster ASA settings. Adobe Camera Raw has the same problem, so maybe DPP is performing some kind of vodoo on the higher speed settings that Adobe and Apple have not (or cannot) figure out.
Has anyone tried different settings within Apterture to try to replicate the output that DPP is able to achieve at these higher iso's? I quickly tried a few things without any success. When I get time I will delve into it further, but if anyone else has some ideas of how to get similar results, I would greatly appreciate any tips or suggestions. It may be that Apple just needs to fine tune the conversion for the higher iso's, but it seems as though no one else has reverse engineered what Canon is doing.

Not using a canon 50d, using a Sony a900 instead. Actually, DPP is special because it does absolutely no noise reduction (at least in AHD mode). You can see that it is actually noisier but with a much finer grain pattern than ACR, aperture, raw developer, etc. You don't get the blotchiness associated with the NR of these other converters. The beauty of this is that when you run it through your grain reducing software it is much better for the software to deal with (the noise hasn't been processed by any NR software- which makes the noise non-random) and as such produces much cleaner images. I just did a comparison of the noise with the A900... here are links of the comparison using a publicly available Imaging Resource Raw file:
http://idisk.mac.com/kshuler/Public/3200resultsarea1.jpg
http://idisk.mac.com/kshuler/Public/3200resultsarea2.jpg
http://idisk.mac.com/kshuler/Public/6400resultsarea1.jpg
http://idisk.mac.com/kshuler/Public/6400resultsarea2.jpg
Aperture doesn't do a bad job, better than most others, but still not as good as RPP.
Klaus
http://www.bokehtests.com

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