The image white balance curve never changes. It remains at the same consistent level. With higher exposure speeds it should get smaller as the CCD is being exposed to less light, but all of the exposures remain the same. I plan on playing with it some more with moving parts, but so far I was not convinced that it was exposing any faster. It seems possible to set arbitrary ISOs though the menu is not representative, for example if you set something below 10, like 7 with a factor of 1, it seems to bottom out at 10, but setting it at 10 does nothing and iso 80 is picked. I haven't been able to get 63 at all, but I did manage to get a shot with a reported ISO of 10 in the EXIF. This still doesn't really answer my question about photoshop and color. Viewing the DNG in picasa looks perfect with perfect color and good white balance when I get a good custom WB, however, importing the same DNG into CS3 results in really weird colors. I'll see if I can post some screenshots, though my desktop drive is starting to fail as I type this actually and I don't know how long the hardware ECC can keep correcting bad sectors........ =)
