copied from another discussion group
The yellow tint also affects iPhone 12pm camera’s performance!!!
I got rid of the yellow tint on my 12mp per setting adjustments you can find online and also on this discussion thread. After convincing myself that I can deal with a practically grayish whiteish screen color compare with my old 11pm, I took both phones to an outdoor shoot. While the 11pm was true to the colors of the footages I took, the 12mp exhibited faint, non vibrant colors. The photos had washed off colors compare to what nature looked like. The 11pm photos on the other hand were all true to the colors (ie what you see is what you get in the photo!).
What was more disturbing is that when I airdropped an image from the 12pm to the 11mp, the colors of that image (on the 11mp) looked washed off. However when I airdropped and image I took on the 11pm to the 12pm, the image was not as bad as a similar taken on the 12pm but not as good as one the Skender on the 11pm- that is because of the compromised screen adjustments due to the yellow tint issues we are discussing here
There are so many things I like about the 12th - Nevertheless it’s time to return it and go back to the old 11pm until Apple figured out these issue and fix them. I highly doubt that a software fix will ll from it this time around.