There is no such thing as someone having a "photographic" memory - only very good memories. Even people with exceptional or autobiographic memories don't recall events with visual details precise enough to mimic a camera.

The intuitive notion of a "photographic" memory is that it is just like a photograph: you can retrieve it from your memory at will and examine it in detail, zooming in on different parts. But a true photographic memory in this sense has never been proved to exist.

Most of us do have a kind of photographic memory, in that most people's memory for visual material is much better and more detailed than our recall of most other kinds of material. For instance, most of us remember a face much more easily than the name associated with that face. But this isn't really a photographic memory; it just shows us the normal difference between types of memory.

Even visual memories that seem to approach the photographic ideal are far from truly photographic. These memories seem to result from a combination of innate abilities, combined with zealous study and familiarity with the material, such as the Bible or fine art.

Sorry to disappoint further, but even an amazing memory in one domain, such as vision, is not a guarantee of great memory across the board. That must be rare, if it occurs at all. A winner of the memory Olympics, for instance, still had to keep sticky notes on the refrigerator to remember what she had to do during the day.