It appears that some iPhone cameras generate a greenish tint on captured photos while others do not, possibly indicating that different component manufacturers are supplying parts for the camera mechanism, resulting in differing quality of the shipping product.
iPhone Atlas reader Mark Rinella submitted a series of photos from four different iPhones. One does not display a greenish tint, all three others (including two replacements -- from Apple -- for the first unit that exhibited the issue) do.
Image #1 (iPhone that does not produce greenish tint):
Image #2 (First iPhone that does produce a greenish tint)
Image #3 (Second iPhone that produces a greenish tint)
Image #4 (Third iPhone that produces a greenish tint)
"Long story short, my wife's iPhone takes beautiful photos with very good color. Unfortunately, my first iPhone had a strong green cast in all light. Apple was very cool about replacing that first phone when I showed them at the genius bar. Unfortunately, the replacement and two others are worse! All have a strong green cast around a magenta center. The genius at the Apple store was very concerned about this - acknowledged the problem and is following up on it."
If you are experiencing a similar issue, please let us know.