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Summary

Description

English: Alcatraz Island as seen from the East. The small island in the San Francisco Bay was developed with facilities for a lighthouse, a military fortification, and a prison. It received designation as a National Historic Landmark in 1986.

Date

2 July 2017, 10:37:21

Source

Own work

Author

Frank Schulenburg

Other versions

This file has been extracted from another file

: Alcatraz Island as seen from the East.jpg

Camera location	37° 49′ 31.77″ N, 122° 24′ 56.42″ W	View this and other nearby images on: OpenStreetMap	37.825492; -122.415672

Licensing

I, the copyright holder of this work, hereby publish it under the following license:

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Information (Geography)

File history

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	17:29, 6 July 2021		4,708 × 1,890 (4.89 MB)	Filetime	File:Alcatraz Island as seen from the East.jpg cropped 36 % vertically using CropTool with precise mode.

File usage

The following pages on the English Wikipedia use this file (pages on other projects are not listed):

National Register of Historic Places listings in San Francisco

Metadata

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Image title	Alcatraz Island as seen from the East. The small island in the San Francisco Bay was developed with facilities for a lighthouse, a military fortification, and a prison. It received designation as a National Historic Landmark in 1986.
Camera manufacturer	Canon
Camera model	Canon EOS 7D Mark II
Author	Frank Schulenburg
Copyright holder	Frank Schulenburg
Exposure time	1/1,250 sec (0.0008)
F-number	f/7.1
ISO speed rating	200
Date and time of data generation	10:37, 2 July 2017
Lens focal length	35 mm
Latitude	37° 49′ 31.77″ N
Longitude	122° 24′ 56.42″ W
Altitude	0 meters above sea level
Headline	Alcatraz Island
Horizontal resolution	300 dpi
Vertical resolution	300 dpi
Software used	Capture One 10 Macintosh
Exposure Program	Aperture priority
Exif version	2.3
Date and time of digitizing	10:37, 2 July 2017
Shutter speed	10.287712
APEX aperture	5.655638
Exposure bias	−0.33333333333333
Subject distance	0 meters
Metering mode	Pattern
Flash	Flash did not fire, compulsory flash suppression
DateTimeOriginal subseconds	82
DateTimeDigitized subseconds	82
Focal plane X resolution	6,086.7631835938
Focal plane Y resolution	6,090.150390625
Focal plane resolution unit	inches
File source	Digital still camera
Scene type	A directly photographed image
Custom image processing	Normal process
Exposure mode	Auto exposure
White balance	Manual white balance
Scene capture type	Standard
GPS time (atomic clock)	18:37:20.708
Satellites used for measurement	21
Receiver status	Measurement in progress
Measurement mode	3-dimensional measurement
Measurement precision	Poor (2.6)
Reference for direction of image	Magnetic direction
Direction of image	302
Geodetic survey data used	WGS-84
GPS date	2 July 2017
GPS tag version	0.0.3.2
Serial number of camera	058021011142
Lens used	Canon EF 24-70mm f/2.8L II USM
Keywords	Alcatraz Island San Francisco California United States San Francisco Bay Alcatraz
Contact information	frank@wikiphotographer.net 150 Seminary Drive 2A Mill Valley, California, 94941 United States
IIM version	4

Summary

Licensing

Information (Geography)

Captions

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some value

2 July 2017

37°49'31.771"N, 122°24'56.419"W

0.0008 second

7.1

35 millimetre

200

image/jpeg

ae45fd0ac1950a6f82ba6e689eaf58a413b1275f

5,123,248 byte

1,890 pixel

4,708 pixel

File history

File usage

Metadata