File:Lead shielding.jpg

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	23:16, 25 February 2006		1,600 × 1,200 (807 KB)	Changlc	Lead bricks being used to shield a radioactive sample. Taken by L. Chang, 3-17-2004. Category:Radioactivity Category:Lead

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Camera manufacturer	Hewlett-Packard Company
Camera model	HP PhotoSmart 315
Exposure time	221/2,500 sec (0.0884)
F Number	f/2.8
Date and time of data generation	18:15, 17 February 2004
Lens focal length	5.88 mm
Orientation	Normal
Horizontal resolution	72 dpi
Vertical resolution	72 dpi
Software used	QuickTime 6.5.2
File change date and time	03:03, 24 December 2004
Y and C positioning	Centered
Exif version	2.2
Date and time of digitizing	18:15, 17 February 2004
Image compression mode	3
APEX exposure bias	0
Maximum land aperture	3 APEX (f/2.83)
Subject distance	0.484 meters
Metering mode	Pattern
Flash	Flash did not fire
Color space	sRGB