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Follow the tutorials below for the most widespread editing softwares. On the left, the original raw file (which comes from a D80) is at your disposal so that you can try it out at home
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1.The main thing is to adjust the chart on the camera so as to avoid reflections. The black and white sticker is intended for that. If that sticker is glossy or/and reflects a source of light, then, you should replace the chart properly.
2.To be efficient, the chart has to be placed in the same light as the subject or the scene you are about to photograph. |
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For a series of pictures taken in the same lighting conditions : take a first picture with the chart (this will be the reference photo), then take the next ones without using the chart. The corrections will then be reported from the reference picture to the next ones in postproduction in the editing software. |
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 PHOTOSHOP CS
We advise you not to work on the original file. You had better work on a copy so as to keep the original colour data.
1. Open your picture. Then open the level tool by pressing Ctrl+L. You can also use the curves tool, Ctrl+M.
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With Photoshop, the use of a script and/or of the batch processing function enables you to quickly correct a whole series of pictures (do not forget those pictures have to be taken in the same lighting conditions) [+]
Remark : If there are too few pictures to correct, the batch processing is not necessarily the quickest way to do it. There is another, easier, way of doing it : you can open your other pictures and download the correction saved beforehand when the reference picture is being edited. |
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2. Select the grey pipette at the bottom to the right of the window (the one in the middle), then click on the grey of the chart : the white balance is automatically corrected.
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A trick to get an optimum picture saturation : select the white pipette on the right and click on the white part of the chart so as to define the maximum white point. Then, in the same way, use the black pipette to click on the black part of the TrueColors chart to define the maximum black point. |
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he levels tool (or curve tool) can be parameterized. This is the basic principle : the grey, black and white values of the chart are defined. They are written on the back of each TrueColors chart. Since the pipettes can be parameterized, it will be possible to give them the target values for the grey, the black, and the white very accurately. For example, if the L.a.b. value of your TrueColors are 70, -1.5 and 0 for the grey, all you have to do is to take those values in the option menu (option button) and to enter them manually for the grey. Same thing for the black and the white values.
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 LIGHTROOM
We advise you not to work on the original file. You had better work on a copy so as to keep the original color data.
1. Operate in ‘’development ‘’ mode. The selector used to adjust the white balance is in the upper part of the ‘’Basic adjustments‘’ panel. By activating it, the tool comes off its base and enables you to adjust the white balance by clicking on the grey area of the chart.
2. Note that the floating magnifying glass offers you an enlarged vision of the pixels under the pipette, which makes an adjustment within about a pixel possible. Besides, the RVB values are expressed in percentages (rather than on a scale from 0 to 255). Click on your picture on the grey area of the chart : the balance of whites is automatically corrected.
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 PHOTOSHOP ELEMENTS **Translation pending **
We advise you not to work on the original file. You had better work on a copy so as to keep the original color data.
Avec Photoshop Elements, il suffit d'utiliser un calque d'ajustement. Ce calque sera alors appliqué aux autres images nécessitant un réglage de la balance des blancs.
1. Créez un calque d'ajustement " Niveaux " en faisant : Calque > Calque d'Ajustement > Niveaux et cliquez sur ok.
2. Sélectionnez la pipette sur la droite et cliquez dans votre image sur le gris de la charte : la balance des blanc est corrigée automatiquement.
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Pour appliquer cette correction à d'autres photo d'une même série, garder ouverte la photo de référence contenant la charte et ouvrez vos autres images. Dans la palette Calque de l'image de référence, il suffit alors de cliquer sur le claque d'ajustement et de l'amener dans l'image à corriger. |
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CAMERA RAW
We advise you not to work on the original file. You had better work on a copy so as to keep the original color data.
1. Open your picture in CameraRaw. Select the white balance tool in the top left-hand corner of the window (the third one).
2. Click on your picture in the grey area of the chart : the balance of whites is automatically corrected.
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 THE GIMP
We advise you not to work on the original file. You had better work on a copy so as to keep the original color data.
1. Open your picture and open the tool level by doing : Color > Levels.
2. En bas à droite, sélectionnez la pipette du millieu nommée " Pointez le point gris" puis cliquez dans l'image sur le gris de la charte TrueColors.
3. The white balance is automatically corrected.
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A trick to get an optimum picture saturation : select the white pipette on the right and click on the white part of the chart so as to define the maximum white point. Then, in the same way, use the black pipette to click on the black part of the TrueColors chart to define the maximum black point. |
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