Getting WB reading from AUTO whilst shooting?
If one wants to do a bracketed set of shots for HDR purposes then one should in theory lock the white balance value across the series of shots. So I'm wondering: would an AUTO white balance naturally change during the series, or does the change in exposure (-/+ EV) cause a recheck of the white balance and thus potentially change it between shots (not desired).
If it can change, is there a way to "lock" that setting (much like I can do with the exposure and focus)? Or does one really have to select either a pre-configured one (Incandescent, Fluorescent, ..., Shade) or specify a value (K, PRE)?
I have seen in the documentation where you can choose a WB based upon a previous photo - so I'm assuming worst case one could take a shot using AUTO, then select that for a specific WB for there on out - but it looks a little bit onerous to do in the field...
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#1. "RE: Getting WB reading from AUTO whilst shooting?" | In response to Reply # 0JosephK Nikonian since 17th Apr 2006Wed 05-Feb-14 07:36 PM
Auto-WB will calculate the white balance individually for each picture, thus having the potential for each frame of the bracket to have a different WB.
For HDR purposes, you should lock it to a constant value. As you list, there are many ways to pick a constant value. Using a pre-config or a specific K value is easiest. Creating a custom (PRE) value is next easiest. Using a previous photo, probably next. Using the first photo of the bracket would probably be the most laborious without being any more accurate than the other methods.
My recommendation would be to use a pre-config setting (sunny, cloudy, etc) or a custom value (PRE).
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