File:180531-N-PO203-0057 (27622706847).jpg

Original file ‎(4,928 × 3,280 pixels, file size: 2.11 MB, MIME type: image/jpeg)

This is a file from the Wikimedia Commons. Information from its description page there is shown below.
Commons is a freely licensed media file repository. You can help.

Summary

Description180531-N-PO203-0057 (27622706847).jpg	Charles A. Czeisler, Ph.D., MD, director, Division of Sleep Medicine, Harvard Medical School and Chief, Division of Sleep and Circadian Disorder, Brigham and Women's Hospital, discusses sleep and circadian rhythms and the impact on performance, health and safety of Navy and Marine Corps personnel during a Distinguished Lecture Series held at the Office of Naval Research. (U.S. Navy photo by John F. Williams/Released)
Date	31 May 2018, 13:20
Source	180531-N-PO203-0057
Author	Office of Naval Research from Arlington, United States

Camera location	38° 52′ 51.16″ N, 77° 06′ 31.25″ W	View this and other nearby images on: OpenStreetMap	38.880877; -77.108681

Licensing

	This file is a work of a sailor or employee of the U.S. Navy, taken or made as part of that person's official duties. As a work of the U.S. federal government, it is in the public domain in the United States.
	This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights.

PDMCreative Commons Public Domain Mark 1.0falsefalse

This image, originally posted to Flickr, was reviewed on 22 March 2020 by the administrator or reviewer Ww2censor, who confirmed that it was available on Flickr under the stated license on that date.

File history

Click on a date/time to view the file as it appeared at that time.

	Date/Time	Thumbnail	Dimensions	User	Comment
current	22:50, 18 March 2020		4,928 × 3,280 (2.11 MB)	Dudek1337	Transferred from Flickr via #flickr2commons

File usage

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

Global file usage

The following other wikis use this file:

Usage on www.wikidata.org
- Q5076617

Metadata

This file contains additional information, 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.

Image title	180531-N-PO203-0057 ARLINGTON, Va. (May. 31, 2018) Charles A. Czeisler, Ph.D., MD, director, Division of Sleep Medicine, Harvard Medical School and Chief, Division of Sleep and Circadian Disorder, Brigham and Women's Hospital, discusses sleep and circadian rhythms and the impact on performance, health and safety of Navy and Marine Corps personnel during a Distinguished Lecture Series held at the Office of Naval Research. (U.S. Navy photo by John F. Williams/Released)
Camera manufacturer	NIKON CORPORATION
Camera model	NIKON D4S
Author	John F. Williams
Copyright holder	Public Domain
Exposure time	1/160 sec (0.00625)
F-number	f/3.2
ISO speed rating	1,600
Date and time of data generation	13:20, 31 May 2018
Lens focal length	200 mm
Credit/Provider	Office of Naval Research
Source	Digital
Headline	Distinguished Lecture Series Featuring Dr. Charles A. Czeisler
Short title	180531-N-PO203-0057
City shown	Arlington
Width	4,928 px
Height	3,280 px
Bits per component	8 8 8
Pixel composition	RGB
Orientation	Normal
Number of components	3
Horizontal resolution	300 dpi
Vertical resolution	300 dpi
Software used	Adobe Photoshop CC 2018 (Macintosh)
File change date and time	16:02, 31 May 2018
White point chromaticity	0.313 0.329
Chromaticities of primarities	0.64 0.33 0.21 0.71 0.15 0.06
Color space transformation matrix coefficients	0.299 0.587 0.114
Y and C positioning	Co-sited
Exposure Program	Manual
Exif version	2.3
Date and time of digitizing	13:20, 31 May 2018
Meaning of each component	Y Cb Cr does not exist
Image compression mode	4
Shutter speed	7.321928
APEX aperture	3.356144
Exposure bias	0
Maximum land aperture	3 APEX (f/2.83)
Metering mode	Pattern
Light source	Unknown
Flash	Flash did not fire
DateTime subseconds	61
DateTimeOriginal subseconds	61
DateTimeDigitized subseconds	61
Supported Flashpix version	1
Color space	Uncalibrated
Sensing method	One-chip color area sensor
File source	Digital still camera
Scene type	A directly photographed image
Custom image processing	Normal process
Exposure mode	Manual exposure
White balance	Manual white balance
Digital zoom ratio	1
Focal length in 35 mm film	200 mm
Scene capture type	Standard
Scene control	High gain up
Contrast	Normal
Saturation	Normal
Sharpness	Normal
Subject distance range	Unknown
GPS tag version	0.0.3.2
Serial number of camera	2024553
Lens used	70.0-200.0 mm f/2.8
Rating (out of 5)	0
Date metadata was last modified	12:02, 31 May 2018
Original transmission location code	7897
Copyright status	Copyrighted
Unique ID of original document	1C373F0E92F343D297689CBB097BC802
Contact information	[email protected] http://www.onr.navy.mil 875 N. Randolph St. Room 1218B Arlington, VA, 22203 USA (703) 588-2392 (wk), (571) 329-4781 (cl)
Keywords	ONR Office of Naval Research S&T Science and Technology U.S. Navy USN USMC
Sublocation of city shown	ARLINGTON
Province or state shown	Va.
Country shown	USA
IIM version	3

Summary

Licensing

Captions

Items portrayed in this file

31 May 2018

38°52'51.157"N, 77°6'31.252"W

0.00625 second

3.2

200 millimetre

1,600

image/jpeg

007104033464a88b25452732ada6410bba9b3e16

2,216,902 byte

3,280 pixel

4,928 pixel

File history

File usage

Global file usage

Metadata