General info: | Model | Canon PowerShot SD850 IS | Make | Canon | Basic shot info: | Focal Length | 5.8 mm; equivalent: 29 mm | Aperture Value | F2.8 | White Balance | Auto white balance | Flash | Flash did not fire, auto | Metering Mode | Multi-segment | Shutter Speed Value | 1/14 sec | ISO Speed Ratings | 800 | Advanced shot info: | Exposure Bias Value | 0 EV | Exposure Time | 1/15 sec | Exposure Mode | Auto exposure | Max Aperture Value | F2.8 | Exif-related info: | Exif Version | 2.20 | Exif Image Width | 550 pixels | Exif Image Height | 399 pixels | Color Space | sRGB | Compression | JPEG (old-style) | User Comment | |
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Meltwater
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9th Avenue and 21st Street looking south: The crown of the roadway surface drains meltwater to the curb, though the separate bikeway poses a special problem: plowed snow on the uphill side will continue to drain as the temperature drops, and will freeze to black ice on the bikeway unless heavily salted. Manhattan streets drain to saltwater, so there's no great environmental problem, but salt rusts bicycles! Photo by Lynette Chiang.
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