Create category for Photo to make it a MKAnnotation; Add latitude/longitude/thumbnailURL to Photo model; Create map view controller to show the photos in the map; Add segue to map view controller from photographer CDTVC
Add left/rigt callout accessories to annotation with the image thumbnail and a disclosure button
Retrieve the image thumbnail only when an annotation is clicked
Add segue from annotation disclosure button to ImageVC
update to iPad
automatically choose a photo when a new photographer is selected
add the map in the ImageVC as an embed VC