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Pine Hill (Wratten 25A) by Chris Fastie

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About This Gigapan

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Taken by
Chris Fastie Chris Fastie
Explore score
1
Size
0.69 Gigapixels
Views
441
Date added
Nov 16, 2013
Date taken
Nov 15, 2013
Categories
environmental, experimental, landscape, nature
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Description

From the south end of Pine Hill in Salisbury, Vermont. Taken with a Powershot A2200 modified by replacing the internal infrared block filter with a piece of Wratten 25A gel filter. The camera's red channel captures red and some near infrared (NIR) light, the green channel captures mostly NIR, and the blue channel captures only NIR. The camera was custom white balanced while pointing it at a piece of bright red origami paper under a hazy sun. This separates the red and blue (NIR) histograms by increasing the camera's emphasis on blue (which it doesn't know is NIR). These photos can be used to create false color infrared images (e.g. www.gigapan.com/gigapans/144700) and NDVI images (e.g., www.gigapan.com/gigapans/144709).
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For more info: publiclab.org/notes/cfastie/11-17-2013/pine-hill Will open in a new tab or window


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Stitcher Notes

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GigaPan Stitch.Efx version 2.2.0375 (Windows)
Panorama size: 688 megapixels (52236 x 13172 pixels)
Input images: 161 (23 columns by 7 rows)
Field of view: 221.7 degrees wide by 55.9 degrees high (top=15.5, bottom=-40.4)
Settings:
Vignette correction off
Original image properties:
Camera make: Canon
Camera model: Canon PowerShot A2200
Image size: 4320x3240 (14.0 megapixels)
Capture time: 2013-11-15 13:32:49 - 2013-11-15 13:46:36
Aperture: f/5.9
Exposure time: 0.005
ISO: 80
Focal length (35mm equiv.): 112.2 mm
Digital zoom: off
White balance: Fixed
Exposure mode: Automatic
Horizontal overlap: 49.9 to 59.6 percent
Vertical overlap: 47.3 to 55.8 percent
Computer stats: 8183.06 MB RAM, 8 CPUs
Total time 7:31 (2.8 seconds per picture)
Alignment: 1:13, Projection: 1:38, Blending: 4:40
(Preview finished in 5:01)
Color Adjustments:
exposure: 0.3

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