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Bow River Spring Breakup by R Forrester

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About This Gigapan

Taken by
R Forrester R Forrester
Explore score
1.13 Gigapixels
Date added
Mar 25, 2010
Date taken
Mar 14, 2010

Canon G9


The later winter weather has been warm and dry, which resulted in an early breakup of ice and snow covering the Bow River at Calgary. The ice here west of the Tenth Street Bridge includes huge chunks dragged over the river bottom by the river current and delicate crystals on surfaces sculpted by wind and sun - plus many more ice textures and shapes. A couple of geese have positioned themselves to view the events, as have several Calgarians (and their dogs).

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Stitcher Notes


GigaPan Stitcher version 0.4.3865 (Macintosh)
Panorama size: 1127 megapixels (51326 x 21971 pixels)
Input images: 220 (20 columns by 11 rows)
Field of view: 128.7 degrees wide by 55.1 degrees high (top=1.2, bottom=-53.9)
All default settings
Original image properties:
Camera make: Canon
Camera model: Canon PowerShot G9
Image size: 4000x3000 (12.0 megapixels)
Capture time: 2010-03-14 17:32:50 - 2010-03-14 18:04:10
Aperture: f/5.6
Exposure time: 0.002
ISO: 80
Focal length (35mm equiv.): 83.1 mm
Digital zoom: off
White balance: Automatic
Exposure mode: Manual
Horizontal overlap: 36.7 to 62.0 percent
Vertical overlap: 36.6 to 42.3 percent
Computer stats: 2048 MB RAM, 2 CPUs
Total time 7:09:52 (1:57 per picture)
Alignment: 36:44, Projection: 25:55, Blending: 6:07:12

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