Can't you see this was shot on film? Hehehe
It's actually the plague that plagues all mirrorless cameras...dirty sensor. It's hard to notice until you REALLY close down your lens or REALLY increase shutter speed. It was impossible to notice on the NEX5's lcd screen with the noon sun. I ended up giving the photos this old treatment just because of this. I've already got my swab and air blower out of the closet though...time for some winter cleaning.