Shutter bug

Shutterbug can mean:
An avid hobbyist in the field of vernacular photography (amateur photography)
An insulting term for any professional photographer.
A song by the band Veruca Salt on the album Eight Arms to Hold You
"Shutterbugg", a song by Big Boi on the album Sir Lucious Left Foot: The Son of Chico Dusty
Shutterbug (magazine), an American photography magazine

Or

A bug that hops onto your shutter and won't leave.