Refers to either (1) steps dat you take to conceal your shutter-box from being observed by da subject of yer photos, or (2) steps dat da would-be subject of yer photo-snapping endeavors takes to conceal himself from da prying-probing "eye" of yer lens.
Celebrities, politicians, suspected/convicted felons, etc. are often da subject of assorted stealthy high-tech attempts by reporters at getting candid snapshots, and so they hafta employ pretty advanced cameraflage techniques of their own in order to be left alone.