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Haven't tried 4.4 but this is good to know. I wish they would fix daylight too.
Which camera model are you talking about?
10D, 20D, 5D, 1DMKIIn, & 1DMKIII. All the Canons I've had. Applying the 4.4 profile to a RAW of a CC shot under tungsten now makes the reds look very good. The older profiles had the reds go to magenta, so I needed to mess around too much with the calibration tabs. Now, they are on the money!
What temperature/tint value as seeing as a good white balance under tungsten?
I went back to look at the tungsten/available light photos, and most are in the mid 2000Ks. The reds look spot on to me with the 4.4 profiles.
Here's a shot (saved/embedded as sRGB) of a CC taken with a 1DMKIII and then processed in ACR (just WB correction) with the 4.1 and 4.4 profiles. Look at the difference. I'm going by look - not numbers. The 4.4 looks better/more accurate on the reds and other patches too. This is very apparent when shooting clothes, real life objects, etc. that have those hues. 4.4 looks great. In this example it's 2400K +3 (the only ACR adjustment was to WB click on the 2nd patch on the bottom row - 2nd from left). Is this not what was meant by the fix at the extreme ends in the 4.4 release notes? But I also understand the each camera has a 2 profiles - one of which is tungsten. And until now, I had to fuss with the reds. Now I don't! Love it!
Here's another example from the 5D. I know the hue of the pillows since I own them :) 4.4 looks accurate and 3.3 way off. Look at the EXIF to see the differences. Again, only correction in ACR was click WB.
Yes, you will see a difference at 2400K, and that is the reason behind the 4.4 profiles.
You will probably not see a difference at or above 2900K.