File:David Hahn 170402-N-PO203-052 (33647859982).jpg

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Description	Rear Adm. David Hahn, chief of naval research, kicks-off the 2017 Naval Stem Exposition, co-sponsored by the Navy League of the United States and the Office of Naval Research (ONR). The event offers hands-on activities and provides middle and high school students an introduction to naval STEM careers and educational opportunities. (U.S. Navy photo by John F. Williams/Released)
Date	2 April 2017, 13:17
Source	170402-N-PO203-052
Author	Office of Naval Research from Arlington, United States

Camera location	38° 46′ 50.52″ N, 77° 01′ 03.57″ W	View this and other nearby images on: OpenStreetMap	38.780701; -77.017657

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	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 9 April 2017 by the administrator or reviewer Well-Informed Optimist, who confirmed that it was available on Flickr under the stated license on that date.

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	15:43, 8 April 2017		4,669 × 3,108 (4.36 MB)	Akbys (talk \| contribs)	Transferred from Flickr via Flickr2Commons

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File:170402-N-PO203-052 (33647859982).jpg (file redirect)

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This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.

Image title	170402-N-PO203-052 NATIONAL HARBOR, Md. (Apr. 2, 2017) Rear Adm. David Hahn, chief of naval research, kicks-off the 2017 Naval Stem Exposition, co-sponsored by the Navy League of the United States and the Office of Naval Research (ONR). The event offers hands-on activities and provides middle and high school students an introduction to naval STEM careers and educational opportunities. (U.S. Navy photo by John F. Williams/Released)
Camera manufacturer	NIKON CORPORATION
Camera model	NIKON D4S
Author	John F. Williams
Exposure time	1/200 sec (0.005)
F-number	f/4
ISO speed rating	3,200
Date and time of data generation	13:17, 2 April 2017
Lens focal length	200 mm
City shown	National Habor
Short title	170402-N-PO203-052
Credit/Provider	U.S. Navy
Source	Office of Naval Research
Headline	Naval Stem Exposition
Label	Select
Orientation	Normal
Horizontal resolution	300 dpi
Vertical resolution	300 dpi
Software used	Adobe Photoshop CC 2017 (Macintosh)
File change date and time	18:45, 2 April 2017
Exposure Program	Manual
Exif version	2.21
Date and time of digitizing	13:17, 2 April 2017
APEX shutter speed	7.643856
APEX aperture	4
APEX exposure bias	0
Maximum land aperture	3 APEX (f/2.83)
Metering mode	Center weighted average
Light source	Unknown
Flash	Flash did not fire
DateTime subseconds	36
DateTimeOriginal subseconds	36
DateTimeDigitized subseconds	36
Color space	Uncalibrated
Focal plane X resolution	1,368.888885498
Focal plane Y resolution	1,368.888885498
Focal plane resolution unit	3
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	Auto 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
IIM version	3
Province or state shown	Md.
Country shown	USA
Keywords	ONR Office of Naval Research S&T Science and Technology U.S. Navy USN USMC STEM student
Original transmission location code	5832
Sublocation of city shown	NATIONAL HARBOR
Serial number of camera	2024544
Lens used	70.0-200.0 mm f/2.8
Date metadata was last modified	14:45, 2 April 2017
Rating (out of 5)	0
Contact information	john.f.williams3.ctr@navy.mil http://www.onr.navy.mil 875 N. Randolph St.Room 1218B Arlington, VA, 22203 USA (703) 588-2392 (wk), (571) 329-4781 (cl)
Unique ID of original document	8C743EF56B880E5D1EEC8F03283255C9