xenon
Posts: 484
Joined: Wed Aug 15, 2001 5:12 am

White Balans....

Fri Jan 21, 2005 12:12 pm

Hi all,

Maybe a stupid question but how do you correct the white balance
when there is nothing real white in the picture...?

Thx,

Daniel Alaerts
AirTeamImages -ATI-
 
DLKAPA
Posts: 7962
Joined: Wed Dec 03, 2003 10:37 am

RE: White Balans....

Fri Jan 21, 2005 12:20 pm

Show us the picture?
And all at once the crowd begins to sing: Sometimes the hardest thing and the right thing are the same
 
xenon
Posts: 484
Joined: Wed Aug 15, 2001 5:12 am

RE: White Balans....

Fri Jan 21, 2005 12:32 pm

DLKAPA,

I don't have one yet...
But sometimes I have to 'seach' a while for something 'real white' so
my question was only if I have sutch case...

Thx,

Daniel

AirTeamImages -ATI-
 
User avatar
jumbojim747
Posts: 2426
Joined: Sat Oct 16, 2004 8:05 pm

RE: White Balans....

Fri Jan 21, 2005 12:53 pm

Does your whites come out blue i had this problem on auto white balance and the camera on auto always gave me a blue shade through out the picture for some reason .
Still to this day im puzzled why this happens.
D70
On a wing and a prayer
 
xenon
Posts: 484
Joined: Wed Aug 15, 2001 5:12 am

RE: White Balans....

Fri Jan 21, 2005 1:03 pm

Nope...
I shoot RAW for night shots so afterwards I can set the whitebalans
correct.

Daniel
AirTeamImages -ATI-
 
sulman
Posts: 1963
Joined: Wed Mar 03, 2004 5:09 am

RE: White Balans....

Fri Jan 21, 2005 4:56 pm

Daniel,

What's 'white' in the picture isn't so important, as how your camera 'sees' the picture. It's more a case of your camera reading the colour temperature of a scene correctly. Under certain conditions, it won't do this, which is another reason RAW is a handy format to use, as you can just change it afterwards.

If you're talking about setting the white point in the levels function, you don't have to do that - instead you can adjust the white and black point by hand until you get something that resembles how things looked on the day.

Jumbo jim:

The blue colour cast you mentioned can be a pain. In my case, it's been because the camera has assumed the scene has a higher proportion of red in it than it actually has, or a lower colour temperature, and has corrected by adding that blue, which has knackered the picture  Sad

Cracking article on the theory here:

http://www.luminous-landscape.com/tutorials/color_and_vision.shtml

Cheers


James
It takes a big man to admit they are wrong, and I am not a big man.
 
User avatar
jumbojim747
Posts: 2426
Joined: Sat Oct 16, 2004 8:05 pm

RE: White Balans....

Fri Jan 21, 2005 5:14 pm

James
I read the article the link provided but im still puzzled as to why the camera cant get the white balance correct.
When i shoot on a normal sunny day with white balance on auto i get a blue shade all over my picture with my d70 when i use my Olympus c740 i don't have the problem .
I can fix the problem in the editing but then it throws the colors out then i have to try to get them corrected.
Anyways
Cheers on providing the link
On a wing and a prayer
 
xenon
Posts: 484
Joined: Wed Aug 15, 2001 5:12 am

RE: White Balans....

Sat Jan 22, 2005 1:56 am

James,

Thank you!

Daniel
AirTeamImages -ATI-

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