Stupid WB question

OK, when I am correcting WB in PP, and I put the dropper on what I "think" is a neutral color what RBG numbers am I looking for? what are the "numbers" of a neutral color.

About 70?

When I go to use it in Aperature I get numbers for RGB and L,

When I put the dropper on somehitng prety neutral it gives me numbers around 200 for all of them. Is 200 my "goal"?

superdiver wrote in post #7052647
what are the "numbers" of a neutral color.

R=G=B

yeah id click a grey area because white and black shows up on any WB, but grey calibrates it perfectly

Every color is represented by three numbers that range from 0 to 255 (for 8 bit notation), the values for red, green and blue. When the three RGB numbers are equal the color is grey. When the numbers are 50/50/50 that is a dark grey, if the numbers are 200/200/200 that is a light grey, and 128/128/128 is medium grey. 255/255/255 is the lightest possible grey, which is called white. 0/0/0 is also technically grey and we call that black.

And the numbers should be equal or very close to it.
Another way to go is to make them equal in an area that you are sure is supposed to be neutral.

Shoot a white balance, then you know you have a neutral color in the image.

tzalman wrote in post #7054167
Every color is represented by three numbers that range from 0 to 255 (for 8 bit notation), the values for red, green and blue. When the three RGB numbers are equal the color is grey. When the numbers are 50/50/50 that is a dark grey, if the numbers are 200/200/200 that is a light grey, and 128/128/128 is medium grey. 255/255/255 is the lightest possible grey, which is called white. 0/0/0 is also technically grey and we call that black.

So "neutral grey" is which numbers? I like the explination, didnt know that!

poloman wrote in post #7054835
And the numbers should be equal or very close to it.
Another way to go is to make them equal in an area that you are sure is supposed to be neutral.

How do I "make" them equal in Aperature? I have seen tutorials where ppl make things a certan RBG value, but I dont know how to do it in Aperature

Titus213 wrote in post #7055265
Shoot a white balance, then you know you have a neutral color in the image.

I know, you preaching to the choir, but sometimes I forget my grey card or I just dont want to dig it out over and over again for the different lighting situations...

superdiver wrote in post #7078108
So "neutral grey" is which numbers?

Anything that has the same numbers for R, G and B is "neutral"... R=G=B = neutral. The higher the numbers, the lighter the gray.

How do I "make" them equal in Aperature? I have seen tutorials where ppl make things a certan RBG value, but I dont know how to do it in Aperature

I use photoshop.

Poloman,

In Photoshop I use Colour Balance, under Adjustments. The info pallete and the mouse will tell you what the channel numbers are, then tweak until it's what you want. it's slow!

It is a lot easier back in DPP, so why not just send it back for the few seconds it takes, then continue in Photoshop.

Whitebalance eyedropper?

René Damkot wrote in post #7081198
Whitebalance eyedropper?

DPP has click white balance with what looks like an eye dropper and I think that's the same idea maybe? All I really know is, I have to have a good white reference to use it in DPP.

Lowner wrote in post #7081152
Poloman,

In Photoshop I use Colour Balance, under Adjustments. The info pallete and the mouse will tell you what the channel numbers are, then tweak until it's what you want. it's slow!

It is a lot easier back in DPP, so why not just send it back for the few seconds it takes, then continue in Photoshop.

I usually use the WB dropper in ACR. Then I will tweak with curves, using the info pallet to tell me what is going on. Another method I use is to establish neutral in the image and use the droppers in curves. But the most important thing is "how does it look?".