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Slabs of Brallier Formation shale, Paw Paw Tunnel by Callan Bentley

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Taken by
Callan Bentley Callan Bentley
Explore score
1
Size
0.62 Gigapixels
Views
387
Date added
August 25, 2012
Date taken
March 06, 2010
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Description

The Paw Paw Tunnel on the C&O Canal exposes some fine geology, like these Brallier Formation slabs which, here, dip into the Tunnel Hollow, with a potential for breaking off and slipping down into the valley.

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The GigaPan EPIC Series, Purchase an GigaPan EPIC model and receive GigaPan Stitch complimentary

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Stitcher Notes

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GigaPan Stitch version 2.0.0501 (Windows)
Panorama size: 622 megapixels (31204 x 19964 pixels)
Input images: 342 (19 columns by 18 rows)
Field of view: 117.9 degrees wide by 75.4 degrees high (top=39.1, bottom=-36.3)
Settings:
Vignette correction on: c1=0.0656 c2=-0.0327
All default settings
Original image properties:
Camera make: Canon
Camera model: Canon EOS 60D
Image size: 2592x1728 (4.5 megapixels)
Capture time: 2010-03-06 18:29:57 - 2010-03-06 18:55:41
Aperture: f/7.1
Exposure time: 0.0166667
ISO: 100 - 125
Focal length (35mm equiv.): 212.3 mm
White balance: Automatic
Exposure mode: Manual
Horizontal overlap: 35.8 to 50.7 percent
Vertical overlap: 34.1 to 43.9 percent
Computer stats: 3317.82 MB RAM, 4 CPUs
Total time 34:59 (6.1 seconds per picture)
Alignment: 16:04, Projection: 8:28, Blending: 10:27
(Preview finished in 26:50)