QUOTE(jchue73 @ Aug 9 2011, 06:05 PM)
You obviously have not encountered problems with matching the flash WB with the ambient WB or p[robably do not realise that is a problem in the first place. If you do not correct the WB light from your flash to match the ambient lighting, you will get different colour lighting from the ambient and from your flash in your pics. Correcting WB on the subject in PP (as a result of light source from the flash) will produce horrible outcome on the background and vice versa.
If vearn27 wasn't using flash, doing custom WB would be the best. But if you use the default flash in tungsten ambient lighting, you would have problems getting correct WB in your pics if your flash is not WB corrected.
Like I mentioned in my reply above, even PP in RAW would give horrible "corrected" WB in PP if the flash WB is different from the ambient WB. Your method is correct if vearn27 does not shoot with flash.
Not possible if you use flash that is not WB corrected.
jchue73, yeah I was suggesting based on my assumption that a flash wasn't used. Hence, my suggestion of using custom WB.
Even if a flash was used and wasn't color corrected, in a shoot-and-submit event, the subject's WB is of priority (the skin tone in this case). The background will have to be in the warm state as it is so as long the subject is good.
Vearn, the metering modes does not govern how the skintone looks like, just how bright/dark the skin tone will be WITH RESPECT TO the surrounding ambient light. As for your issue
QUOTE
on how to capture the color as accurately as possible for straight out from camera photos
, the safest way is to bring along a clean sheet of A4 paper and measure the WB off it on the spot. If the lighting color changes in your event space, this will be a lot of hassle. This is where learning your Kelvin WB setting comes in handy, a quick adjustment to how you see the light at that point of time and you will get a close enough guesstimation of the Kelvin values. This comes with practice. In events, i tend to use
wide-area and
centre weighted metering, very seldom i use spot metering, unless that the subject fills the entire frame. I adapt my WB settings to different situations.
eg.
wedding dinner halls with loads of warm tungsten light: i gel my flash to match and uses the kelvin settings to compensate for the warm flash light.
concerts with crazy lights: AWB with no flash (this works the best), if flash is needed, i use flash WB setting.
outdoors sunny/cloudy: AWB (my in camera AWB for these situations give spot on WB without me worrying)
hall with fluorescent lights: custom WB and try to keep my shutter speed at 1/50s or slower so that it completes the shot withing a sine cycle of the power grid's frequency of 50Hz
see when you are free, gimme a ring, could meet up and go do some shooting or yum cha (on you) lol...
This post has been edited by lwliam: Aug 9 2011, 10:14 PM