Nope, just a bad photographer (me). While taking a shot of an outbound Orange Line train led by car #01203 entering Ruggles, I managed to jiggle the cell phone slightly. The slow-scanning CCD sensor makes vertical wiggle look like a sinusoidal wiggle.
Also note the thumb (mine) at the bottom of the frame. Ansel Adams I ain't.
The Boston Projection
1 day ago