Basic Question: Need Help Setting Color Temp in Scene File

D

Denniscasey

Well-known member
Experimenting with Scene File settings I can't get Color Temp to work. I can get other settings to work--for instance I can adjust A.Iris Level to lighten/darken exposure and I can see scene get darker/lighter when I adjust A. Iris Level. I set to minus 6 (darker), do Save and then Load and turn off camera and when I turn it back on scenes I look at have dark exposure.

But, when I try Color Temp I can not see color cast/tint change in viewfinder when I do adjustment and when I do Save, Load, on/off there is no change to color tint (bluer/oranger) in scene. By the way, in my HMC40 there is an Enter selection for each setting which I do (that step was not mentioned in the Panasonic tutorial or in Barry's book). Barry points out page 239 of his book that A.IRIS and COLOR TEMP only take effect if you use auto-iris and manual white balance.

My procedure is set camera to Manual; push iris wheel until Auto Iris displays, do a manual white balance and then try adjusting COLOR TEMP but is there something else I need to do or it only works in certain lighting or what?

Also, I am still not clear on how long Scene File settings are applied. Once you do initial on/off to "set" Scene 1 or Scene 2 are they in effect from then on no matter how many times you turn camera on/off and are they only in effect if you are in Manual setting? Thank you, Dennis
 
I had help which pointed out I had not set manual white balance to Channel A or B and that was crux of my whole problem. In flurry of activity I just set camera to Manual and pushed and held white balance button in without noticing I had not cycled through white balance settings (ATW, ATW Lock, AWB 3.2K, AWB 5.6K, AWB A or BCh). Camera was actually in ATW when I held white balance button in. I should have noticed something was wrong because even though camera showed ABB OK it really had not achieved white balance as indicated by blue tint to scene. I despair that I still make these mistakes, but if you believe you learn from your mistakes I am certainly learning a lot!!
 
Dennis,

One way to handle the white balance is to frame your scene in ATW and before you shoot, lock it in so it won't change during your shoot. You can program one of your user buttons to help with this. It would still be better to balance on a white card, but it works pretty well if you are in a hurry.

Grant
 
Grant,

Thank you and I remember your ATW Lock suggestion from earlier notes and I do use it under conditions you suggest. I have had quite a recent discussion going in this forum on white balance in general and my "problems" with Color Temp related to methods that might be useful for maintaining color casts present in sunrise/sunset conditions (from that discussion I was learning that a manual white balance would remove some of the golden tones that are actually present). Regards, Dennis
 
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