File:Mag survey g858grad.JPG

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Original file ‎(1,024 × 1,280 pixels, file size: 309 KB, MIME type: image/jpeg)

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Description
English: Magnetic survey of an archaeological site in Montana, USA. The instrument is a cesium vapor magnetometer with two sensors for measuring the vertical gradient of the geomagnetic field.
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Author Tapatio
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current15:51, 10 February 2009Thumbnail for version as of 15:51, 10 February 20091,024 × 1,280 (309 KB)Tapatio~commonswiki (talk | contribs){{Information |Description={{en|1=Magnetic survey of an archaeological site in Montana, USA. The instrument is a cesium vapor magnetometer with two sensors for measuring the vertical gradient of the geomagnetic field.}} |Source=Own work by uploader |Autho
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Metadata

This file contains additional information, such as Exif metadata, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from its original state, some details may not fully reflect the modified file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Camera manufacturer Hewlett-Packard Company
Camera model HP PhotoSmart 315
Exposure time 9/2,500 sec (0.0036)
F-number f/5.6
Date and time of data generation 05:03, 13 May 2005
Lens focal length 5.88 mm
Orientation Normal
Horizontal resolution 72 dpi
Vertical resolution 72 dpi
Y and C positioning Centered
Exif version 2.1
Date and time of digitizing 05:03, 13 May 2005
Image compression mode 1.7
APEX exposure bias 0
Maximum land aperture 3 APEX (f/2.83)
Subject distance 10 meters
Metering mode Pattern
Flash Flash did not fire
Color space sRGB
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