I am trying to set the custom white balance on my Canon R6 for use with a R72 infra red filter. When I take and image of green grass (as recommended) the image is red, when I try to set this image as a reference I get the message "Correct WB may not be obtained with the selected image". Am I doing something wrong, or is the white balance of the R6 not able to be set for IR photography?
The Canon R6 has no internal IR filter so it will see infrared light. This means that when you take a photo of green grass with an IR filter, the camera will see the grass as red because infrared light is invisible to the human eye but is seen as red by cameras. The message "Correct WB may not be obtained with the selected image" means that the camera cannot accurately set the white balance for the IR photo. This is because the camera is not expecting to see infrared light and does not have a way to compensate for it. There are a few things you can do to set the white balance for IR photography with your Canon R6: Use a grey card. A grey card is a piece of cardstock that is evenly illuminated and reflects all wavelengths of light equally. You can use a grey card to set the white balance in any lighting condition, including IR. Use a custom white balance. You can also set a custom white balance by photographing a white or neutral object in the same lighting conditions as your subject. Use a software solution. Several software solutions can be used to correct the white balance of IR photos. These solutions typically use algorithms to analyze the photo and adjust the white balance accordingly.
Setting a custom white balance for infrared photography can be challenging. Try using a neutral gray or white object as a reference, shoot in RAW, and manually adjust the white balance temperature and tint sliders in your camera settings. If these methods don't work, consider checking for firmware updates or consult Canon support. Alternatively, correct the white balance during post-processing using software like Lightroom or Photoshop.
