I'm packing for Honduras now and will save this for later.. I truly have no
idea what you are talking about. I just take the photos as RAW files and
try to adjust them later in LR or PS.
I'll be back in a week.
Thanks,
Tina
On Fri, Jun 27, 2014 at 6:44 PM, Moose <olymoose@xxxxxxxxx> wrote:
> On 6/26/2014 5:33 PM, Tina Manley wrote:
>
>> The Auto-White balance should have no effect at all since I only shoot
>> RAW.
>>
>
> Is it possible you misunderstand how RAW conversion in general and ACR and
> LR, specifically, work?
>
> RAW files are color balance agnostic. In the process of conversion to PSD,
> TIFF, JPEG, whatever, some sort of assumptions must be made about how to
> convert/present color.
>
> By default, ACR and LR use the settings from the camera. So, unless you
> have changed the defaults, say to always Daylight, or go to the trouble of
> selecting a WB each time you convert, you get what the Auto WB in the
> camera has chosen.
>
> Here's a practical example. <http://www.moosemystic.net/
> Gallery/tech/AutoWB_ACR-LR/ACR-LR_WB.htm>
>
> All but one version are the same, shot with a GX7 set to Auto WB. You can
> see the Temperature and Tint settings.
>
> 1. What you get in ACR or LR with the Adobe default conversion.
>
> 2. What you get in ACR or LR with the Adobe Daylight setting.
>
> 3. GX7 set to Daylight WB, Adobe default conversion.
>
> 4. What you get in ACR or LR with the Adobe Tungsten Setting.
>
> 5. What you get in ACR or LR with temp/tint set per a gray scale reference
> set on top of the subject.
>
> 6. What you get in ACR or LR if you choose their Auto WB. Identical to
> Tungsten, which probably means it has interpreted the overall reddish cast
> as tungsten lighting - which it isn't.
>
> 7. None of them are quite what I see when I schlepp the book out in
> sunlight. The one corrected with a WhiBal and WB dropper is pretty good,
> but has a slight greenish cast that isn't quite right.
>
> The light is a daylight-ish, multiple LED desk lamp. I intentionally chose
> a subject with an overall color cast and a light not like any standard
> settings and lit unevenly to show a range of brightness.
>
> Thoughts/conclusions:
>
> 1. Both the camera and ACR/LR Daylight settings are pretty good.
>
> 2. ACR/LR Auto WB would be pretty good, if the subject were color neutral
> to start with. :-)
>
> 3. The Panny Auto WB is neither fish nor fowl, going part way toward
> neutral, while retaining an unlovely pink cast.
>
> 4. Unless one has a custom conversion set-up, it is safest when shooting
> RAW to set the camera to Daylight WB.
>
> Obviously, I don't have Leica RAW files to play with. But looking at the
> Auto WB results from GX7 and Adobe, and knowing what Canon and Oly do, I'd
> stick with Daylight on Leicas too, absent careful testing and custom work
> flow settings.
>
> Raw Moose
>
>
> --
> What if the Hokey Pokey *IS* what it's all about?
> --
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>
>
>
--
Tina Manley
http:// <http://tina-manley.artistwebsites.com/>www.tinamanley.com
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