Well, I know that PET scans of the brain reveal that activities such as playing music are delocalized over both hemispheres. I don't see why photography would be any different. Perhaps in the early learning phase, things will be handled mostly by the left, but as the paths are established, the activities should gradually become distributed across the brain.
My sense is that the way people talk about photography has more to do with the conversation they want to have than anything else. Some people simply enjoy discussing the technical stuff, or perhaps feel that they can help others by discussing those things.
I can't imagine anybody wanting to admit that their photography takes place in the left hemisphere.
On the other hand, we do have quite a few members here from the southern hemisphere, and their stuff is, you know, upside down