Step 1: Prepare, setup & shoot
- Get a Gretag Macbeth colorchecking card which can be purchased here.
- Wait for a cloudy day (which comes closest to 6500K).
- Place the card under a slight angle upwards and make sure it doesn't reflect any unwanted colors (like foilage).
- Make sure the camera is storing RAW files.
- Set the lens aperture to a value with the least dropoff (a sweet value, usually f/8).
- Make sure the ISO is set to the lowest value (usually 100 or 200).
- Set the camera in spot metering mode.
- Set the camera to exposure lock & hold.
- Spot meter on patch 22 (column 4, row 4), which is about 50% gray and lock the value.
- Frame the card, focus and take a picture.
Step 2: Convert to DNG
- Open the RAW file in Lightroom.
- Switch to Developer mode.
- In the right panel scroll to the "Camera Calibration' section.
- Set the base profile you want to use (e.g.: Camera Neutral, Camera Standard or Adobe).
- Set the White Balance by pressing W and then clicking on patch 22.
- Switch to Library mode.
- Convert to DNG, menu: Library->Convert Photo to DNG... These are the settings I used:
Step 3: Create profile
- Install Adobe's Profile Editor, which can be downloaded here.
- Start the DNG Profile Editor.
- Open the DNG file created in step 2, menu: File->Open DNG Image (CTRL+O).
- Select the tab named 'Color Tables' on the right panel.
- Make sure the Base Profile you used in step 2 is properly selected, or select the one you want to use.
- Select the tab named 'Chart' on the right panel.
- Place the markers on the corresponding corner patches.
- Click the button named 'Create Color Table...' on the right panel, then click 'OK'.
- Save the profile, menu: File->Export profile... (CTRL+E).
Step 4: Using the profile
- (Re)start Lightroom.
- Switch to Develop mode.
- Select a photo.
- In the right panel, scroll down to the 'Camera Calibration' section.
- Select the profile you created in step 3.
- Make sure all the sliders are set to 0.
- Compare it with the base profile you selected in step 1. There should only be some color differences (improvements).