Canon 5D and Canon 5D mk II
1.Install the ExpoDisc and set the camera to Manual Focus mode.
2.Allow the camera to set an automatic exposure using the “P”, “S” or “A” modes or set the correct manual exposure in “M” mode.
3.Aim the camera towards the light illuminating the subject and press the shutter release button.
4.Push the ʻMENUʼ button
5.Scroll down to ʻCustom WBʼ in the menu using the thumb dial, then push the ʻSETʼ button in the center of the thumb dial.
6.Push the ʻSetʼ button again to select the ExpoDisc ʻgray frameʼ just taken. A reminder message will appear if the camera is not in ʻCustom WBʼ mode.
7.Push the ʻMENUʼ button to exit the menu.
8.Push and hold the 
) in the control panel.
9.Remove the ExpoDisc, return the camera to Auto Focus if desired, and start shooting.
Canon 1D and 1Ds
1.Install the ExpoDisc and set the camera to Manual Focus mode.
2.Allow the camera to set an automatic exposure using the “P”, “S” or “A” modes or set the correct manual exposure in “M” mode.
3.Aim the camera in the appropriate direction for the given lighting condition and press the shutter release button. See the ExpoDisc Instruction Manual or Quickstart Instructions for more information on where to aim the camera.
4.Press and hold the “MENU” button while turning thumb dial to select the camera icon, then release “MENU” button.
5.Press and hold the “SELECT” button while turning thumb dial to select “Custom WB”, then release the “SELECT” button.
6.Press and hold the “SELECT” button while turning the thumb dial to select the desired ʻgray frameʼ just taken, then release the “SELECT” button.
7.Press and hold the “SELECT” button while turning the thumb dial to select “OK”, then release “SELECT” button to import the ʻgray frameʼ white balance data.
8.Press and hold the “WB” button while turning the thumb dial to select the custom WB icon in the control panel located below the LCD screen, then release the “WB” button.
9.Remove the ExpoDisc, return camera to Auto Focus if desired, and start shooting.
Copyright, 2010 ExpoImaging, Inc.
“Canon” and the Canon camera models listed are Trademarks of Canon, Inc.