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About This Gigapan

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Taken by
Robin Rohrback-Schiavone Robin Rohrback-Schiavone
Explore score
1
Print Pricing
$8.23 to $518.00
Size
0.25 Gigapixels
Views
770
Date added
Jan 14, 2013
Date taken
 
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Description

This sample was contributed by Dr. Jay Kaufman of Univeristy of Maryland.

Writes Dr. Kaufman: "This slab, which is about 3.5" across, comes from the ca. 3.5 billion-year-old Barberton Mountainland greenstone belt. Lapilli form during volcanic eruptions into a wet atmosphere by accretion around a central nucleus of ash, after which they rain out like hailstones. While some are round and show evidence of layering, others are deformed and massive. They are compositionally homogeneous unless altered by secondary processes. I collected this lovely sample back in 1982 while working with Don Lowe, Gary Byerly, and Jeff Hanor from Louisiana State University, and made a set of coasters from the slabs."


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Stitcher Notes

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GigaPan Stitch version 2.0.0501 (Windows)
Panorama size: 250 megapixels (16556 x 15104 pixels)
Input images: 48 (6 columns by 8 rows)
Field of view: 26.3 degrees wide by 24.0 degrees high (top=10.2, bottom=-13.8)
Settings:
Vignette correction on: c1=0.0357 c2=0.0017
All default settings
Original image properties:
Camera make: unknown
Camera model: unknown
Image size: 5184x3456 (17.9 megapixels)
Capture time: unknown
Aperture: unknown
Exposure time: unknown
ISO: unknown
Focal length (35mm equiv.): unknown
White balance: unknown
Exposure mode: unknown
Horizontal overlap: 57.2 to 57.9 percent
Vertical overlap: 51.5 to 52.5 percent
Computer stats: 4000.13 MB RAM, 4 CPUs
Total time 5:57 (7.4 seconds per picture)
Alignment: 42 seconds, Projection: 1:27, Blending: 3:48
(Preview finished in 2:47)

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