A week ago Wednesday was a potato-disconnect day (I call the take-home chemo-pump "the potato"). And as usual since I was already out-and-about, I took my camera to some random-ish part of town. This time was revisiting The Embarcadero near Broadway Pier.
Figure 1. Not sure how this photo got to be the way it is. Like many of my other photos lately, it was taken through the window of a moving bus.
When I do my slow shutter speed pics (typically 1/8 sec) there are a lot of vectors that cause blur:
1. The camera is on the bus/trolley which is moving, causing translational vector blur.
2. I'm panning the camera, i.e., rotating the camera, causing rotational vector blur (around the camera's yaw axis).
3. The individual elements within the photo can have their own proper motion, e.g., a subject walking, a moving car driving by, an airplane in the sky, etc. They can each cause their own proper motion vector blur.
4. The bus or trolley is often bumpy which causes low-frequency camera shake blur.
5. I'm not a brain-surgeon when holding the camera steady while panning, and there exists natural camera shake and my own panning error vector blur.
Ignoring vectors 4 & 5 for the moment, my goal is pan the camera such that vectors 1, 2, & 3 all add to zero for specific subject point I'm panning at. The idea is the central point of panning should have very little blur, and other parts of the photo should have blur due to their non-zero blur vector sum.
But the way these vectors sum together, especially when you include vectors 4 & 5, things often blur in surprising and unexpected ways. Sometimes the photos even take on the characteristics of impressionist paintings.
The above photo (see Fig. 1) surprises me. The guy on the left is wearing an unremarkable baseball cap yet it appears in the photo to be some sort of tall, multicolored top-hat. The guy on the right looks like his arm or something is extended, but I don't think that's really what's happening.
A clue might be given in the red fire-lane paint on the curb that seems to bleeding upwards. But I don't know. I seriously don't know what's causing the blur pattern in that photo.
Figure 2. A couple wearing blue hardhats.
Figure 3. the bus came to a stop for a moment and I quickly changed my camera settings to a more normal exposure to capture the mural. That mural amuses me and brings me joy.
Figure 4. So I got off the bus about a mile (roughly) from my Broadway Pier destination, and decided to walk the rest of the way, hoping to get some street photos while walking. It was disappointing photo-wise, but I did get some exercise at least. This is the best photo I came up with on the walk.
Figure 5. I made it to my destination. Found a spot with a bicycle chained up that made an interesting shadow on the walkway.
Figure 6.
To be continued. ...