brimull wrote:
The RAW converters do appear quite similar in their result.
Brian M.
Though I use ACR 90% of the time, I do use DPP as a kind of reference tool, as it gives the results that Canon intended for its cameras. I personally think all Canon RAW shooters should be familiar with DPP, as it can tell you a lot about how the camera's image processing chain works.
Anyway, using ACR, I've found it is possible to get a pretty close match to Canon's native results if you pick one of the "camera" color profiles (I tend to use Standard as a starting point for both converters). With the 5-series cameras I've always preferred Canon's colors, and only really liked using ACR once Adobe started mimicking native profiles. However, for the 7D and 1D Mark IV, I think Adobe does a better job with colors, so I use Adobe's native profile for those (this is just one of the reasons that makes these cameras quixotic).
For me, the major qualitative delta between DPP and ACR (other than workflow practice) is noise reduction--Adobe is just a LOT better at it--so I never use the in-built NR in DPP; rather, I'll process to TIFFs and use the Neat Image Photoshop plug-in, which is quite good.
DPP provides Canon's unique lens correction profiles that can substantially sharpen and improve results for images intended for exhibition printing (beyond the CA controls in Adobe software). "Challenging" lenses (which sometimes the 400 DO can be) can show real improvement using DPP (assuming you have a better plug-in for noise reduction).
Sorry for getting too off-topic.