October 3, 2009
Objects in Motion: Part 3
On Monday, September 28 (which happened to be Yom Kippur), I decided to shoot some more pictures at the intersection of Broadway and Spruce in downtown Boulder.
I was there from about 7:30 P.M. to a little after 8:00 P.M. Sunset was at 6:49 P.M. that day.
Instead of using my 28-135mm I.S. lens, I decided to use my 50mm lens, since it goes down to f/1.8, whereas my 28-135mm lens only goes down to f/3.5. The lower the f-stop number, the wider open the aperture is, which lets in more light.
The downside was that I had to stand so far back from the street that the building I was next to obstructed my view of Broadway toward the south. I would have to stand on the corner, and when I saw a vehicle that looked interesting, I would have to take several steps back into position, and hope that I could focus on it and begin panning as it came into view.
The last photo, of the Mustang, was taken at 13th and Spruce. The Hotel Boulderado's Corner Bar is in the background.
Before heading home, I stepped into The B Side Lounge for a quick drink. However, I ran into Peter Sturms, the only photographer I know who works with film, and had him look over the pictures I had just taken. He told me that a rule of thumb is to set shutter speed as the inverse of the focal length; e.g., if I'm using a 50mm lens, then my shutter speed should have been 1/50 of a second. I'll try that next time, because I would like to get sharper images of the vehicles.
Anyway, a "quick drink" turned into several hours, as I had walked into the middle of a trivia game that I ended up participating in. At least I won some free drinks.
Posted by Robert Racansky on October 3, 2009 at 5:43 PM