White balance in RAW - necessary ?

[wildepics]

Just a comment on gels and white balance in Adobe vs mfg's software. When I took RG's Palm Beach course, we shot Yvonne & Jessica indoors with a deep green gel on the light to capture magenta light through a glass block window. We did the white balance in camera. When I put the RAW file onto Camera RAW in Photoshop it could not get all the green out, the tint slider was maxed on the "magenta end" but there was still a slight green tinge. Canon's DPP (I use a Canon 30D, BTW) balanced perfectly. because Adobe doesn't have Canon's assistance, there are effects at the extremes of the camera's capabilities that may not be adequately resolved by Camera Raw. This is not a slam at CR, I use it for most processing, but occasionally go to mfg's software when I can't quite get it right.

[R_Fredrick_Smith]

DNG notes. From what I've read, I didn't see DNG as a RAW format but merely a holder of any vendors RAW file. There would be additional data surrounding it, but essentially the actual RAW file from the camera would be encapsulated in the DNG file. If that is the case, then it is not really a new standard, but just a method of storing RAW files that gives them all some common characteristics that can be more easily manipulated in various archiving software.
Cheers,
rfs

[CatCynic]

Originally Posted by R_Fredrick_Smith

DNG notes. From what I've read, I didn't see DNG as a RAW format but merely a holder of any vendors RAW file. There would be additional data surrounding it, but essentially the actual RAW file from the camera would be encapsulated in the DNG file. If that is the case, then it is not really a new standard, but just a method of storing RAW files that gives them all some common characteristics that can be more easily manipulated in various archiving software.
Cheers,
rfs

That's not how I read it. As I understand DNG, it has the (optional) ability to hold the manufacturer's RAW file, but it also holds the raw data in a standard form. Yes, that makes it twice as big, if you enable storing the manufacturer data - the theory is that it gives you the safety of retaining the original, plus a format in which the data is stored in a standard way.