There have been a select number of early HTC HD2 suffering from a pink haze when a photo was taken. A very well documented issue, HTC have now produced a software update to resolve the issue.
Update for HTC HD2 – Digital Picture Enhancement
This update for HTC HD2 delivers clear digital picture quality like never before. Living up to the name of “HD” this phone and its twin LED flash will take beautiful pictures for you to cherish your memories. Displayed in brilliant vibrant colors on its 4.3 inch screen, HTC HD2 camera will delight you.
You can resolve the issue, if it is on your device by DOWNLOADING THE UPDAT HERE.