Matter of DoTs . . .

Looks like dust to me. If the white dots were just on the wall I would say they were just reflections, but the phenomenon also appears toward the center of the photo on the building in the background.

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Fuji X-E1 w/ 35mm f/1.4 and 18mm f/2.0www
Canon 5D MkII w/ 24-70 f/2.8, Sigma 50 f/1.4, Canon 85 f/1.8, etc, etc...
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