General info:
ModelCanon PowerShot A570 IS
MakeCanon
Basic shot info:
Focal Length5.8 mm; equivalent: 35 mm
Aperture ValueF4.5
White BalanceAuto white balance
FlashFlash did not fire, auto
Metering ModeCenter weighted average
Shutter Speed Value1/501 sec
ISO Speed Ratings200
Advanced shot info:
Exposure Bias Value0 EV
Exposure Time1/500 sec
Exposure ModeAuto exposure
Max Aperture ValueF2.6
Exif-related info:
Exif Version2.20
Exif Image Width559 pixels
Exif Image Height435 pixels
Color SpacesRGB
CompressionJPEG (old-style)
User Comment


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Sidewalk, 2008
This is the eastbound sidewalk of the Hawthorne bridge. The markings on the pavement indicate that bicyclists are supposed to keep closer to the roadway, and pedestrians, closer to the railing. One justification for this is shown in this photo, the entrance from a stairway, at the right; a bicyclist traveling rapidly past this location could strike a pedestrian coming up the stairs. Overtaking on the right is contrary to usual practice in the USa, but there is not enough room to the left of the designated bicyclists' line of travel that another bicyclist could overtake safely. And, erratic behavior of pedestrians and other bicyclists could deflect a bicyclist down the 12-inch curb to the grid deck, in front of motor traffic, with little hope to keep the rubber side down. A more detailed description of conditions when bicycling eastbound across the bridge is available in