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Antietam Formation by Alan Pitts

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About This Gigapan

Taken by
Alan Pitts Alan Pitts
Explore score
2.55 Gigapixels
Date added
Feb 11, 2012
Date taken
Feb 10, 2012

This exposure of Cambrian Antietam Quartzite is along the Norfolk Southern Railroad west of Linden Virginia. This unit is a very clean quartzite with little to no impurities. Stratigraphically, the Antietam formation is the top of the Blue Ridge Anticlinorium. This exposure is on the western flank of the Anticlinorium.

View of Camera is looking roughly Northwest

Image made as part of the MAGIC project (Mid-Atlantic Geo-Imagery Collection)

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Stitcher Notes


GigaPan Stitch version 1.1.1565 (Macintosh)
Panorama size: 2549 megapixels (74064 x 34420 pixels)
Input images: 286 (22 columns by 13 rows)
Field of view: 115.2 degrees wide by 53.5 degrees high (top=44.3, bottom=-9.3)
Vignette correction on: c1=0.0171 c2=-0.0284
All default settings
Original image properties:
Camera make: Canon
Camera model: Canon PowerShot SX120 IS
Image size: 3648x2736 (10.0 megapixels)
Capture time: 2012-02-10 13:05:50 - 2012-02-10 13:36:01
Aperture: f/5
Exposure time: 0.0025
ISO: 80
Focal length (35mm equiv.): 361.4 mm
Digital zoom: off
White balance: Fixed
Exposure mode: Manual
Horizontal overlap: 6.7 to 49.2 percent
Vertical overlap: 2.0 to 24.6 percent
Computer stats: 4096 MB RAM, 4 CPUs
Total time 1:21:50 (17 seconds per picture)
Alignment: 14:16, Projection: 10:02, Blending: 57:33
(Preview finished in 32:22)

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