The apparitions of Zeitoun, Egypt

[by-product of evolution]

What do you think of the alleged apparitions of Mary in Zeitoun, Egypt from 1968 to 1970?

I find strange that some photos show just a white vague form and others show a very clear form of Mary. Here are some examples:

Does anybody know if this last photo is fraudulent?

source of those photos (you can have more and a video) : http://www.zeitun-eg.org/zeitngal.htm

[Rhomphaia]

I remember hearing something about how people thought it was fraudulent because no negatives were ever examined and the pics are 'too good to be true'