« on: December 22, 2013, 11:16:22 AM »
Even with WB set to auto, you can always correct the WB in ACR for one picture, select it first, then select more in Adobe ACR and synchronize WB. It is simple and fast.I can't see how that helps if the light for exterior shooting changes. 5500K will be wrong and you will still have to make changes. Unless you take a lot of pictures at the same external place at exactly the same conditions of course where the changes if any will be applied to more than one photos at the same time.My general approach is to set WB at a predetermined value, I use 5,500ºK, this takes one inconsistency out of the equation. If you use Auto WB you have to adjust for the cameras idea as well as the actual light, in post processing I find it easier to adjust everything by the same amount than try to even out the inconsistencies Auto WB introduces, then just tweak in groups as the light changed.
+1. For several years I used AWB but found I was spending a lot of time in LR micro adjusting the WB of each shot from a set to compensate for the white balance the camera selected for individual pictures. Keeping the WB set for Daylight or 5500K alleviates those PP issues.
I think that's the point, you already know the exact k with out having to look it up, make the work flow slightly faster
Yeah but if you use flash worst thing in the world is Auto WB. Knowing what temp you are shooting at has it's advantages in camera. I think it helps understand color temp better too.
Also in post you want to see and control the amount of color shift as the sun sinks. For example in shot no 1. lets say you correct WB to 5000k and then sync all. Great but now shot 100 is the wrong color because by that point the sun went down and things got cooler and you wanted to preserve that look. Auto is too inconsistent and you'd have to muck about fixing a lot more shots then resyncing. With a fixed value you know how much or how less you need to move it by.
It's hard to explain but it does help your workflow by shooting at a constant temp. Auto can be cool one shot and then warm the next. Then you gotta figure out "was it really cool or was it warm at that point?" With Daylight you know exactly how it was!