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Thomas Birch, Fairmount Water Works, 1821, oil on canvas, 20 1/8 x 30 1/16 in. (51.1 x 76.3 cm). Pennsylvania Academy of Fine Arts, Philadelphia.

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	16:54, October 2, 2015		954 × 643 (416 KB)	C-tompkins (talk \| contribs)

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Camera manufacturer	Hasselblad
Camera model	Hasselblad H4D-50MS - Hasselblad H4D
Author	Barbara Katus
Copyright holder	Pennsylvania Academy of the Fine Arts
Exposure time	1/125 sec (0.008)
F Number	f/13
ISO speed rating	50
Date and time of data generation	14:55, November 1, 2011
Lens focal length	80 mm
Width	6,900 px
Height	4,816 px
Bits per component	8 8 8
Compression scheme	Uncompressed
Pixel composition	RGB
Orientation	Normal
Number of components	3
Horizontal resolution	72 dpi
Vertical resolution	72 dpi
Data arrangement	chunky format
Software used	Adobe Photoshop CS4 Windows
File change date and time	10:34, September 17, 2014
Exposure Program	Manual
Exif version	2.1
Date and time of digitizing	14:55, November 1, 2011
APEX shutter speed	6.9657842814922
APEX aperture	7.4008794352412
Maximum land aperture	3 APEX (f/2.83)
Subject distance	1.41 meters
Metering mode	Center weighted average
Flash	Flash did not fire
Color space	Uncalibrated
Focal length in 35 mm film	56 mm
Image width	954 px
Image height	643 px
Lens used	HC 80
Serial number of camera	DP40016011
Date metadata was last modified	06:34, September 17, 2014
Unique ID of original document	xmp.did:2748651DDA37E111B47F98645BCAE146
Contact information	[email protected] 128 N. Broad Street PAFA/Digital Assets Manager Philadelphia, PA, 19102 United States 215 972-2051
IIM version	4