File:Harwell-dekatron-witch-computer-under-resotoration-2010-03-13.jpg

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	11:42, 18 January 2013		3,878 × 2,848 (6.69 MB)	commons>Jacek Halicki	Perspektywa

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Image title	The WITCH (Harwell Dekatron) computer under restoration at the British National Museum of Computing, Bletchley Park, 2010-03-13.
Camera manufacturer	NIKON CORPORATION
Camera model	NIKON D5000
Exposure time	1/40 sec (0.025)
F Number	f/3.5
ISO speed rating	800
Date and time of data generation	15:54, 13 March 2009
Lens focal length	18 mm
Orientation	Normal
Horizontal resolution	300 dpi
Vertical resolution	300 dpi
Software used	Adobe Photoshop CS3 Windows
File change date and time	12:36, 18 January 2013
Y and C positioning	Co-sited
Exposure Program	Manual
Exif version	2.21
Date and time of digitizing	15:54, 13 March 2009
Meaning of each component	Y Cb Cr does not exist
Image compression mode	4
APEX exposure bias	1.3333333333333
Maximum land aperture	3.6 APEX (f/3.48)
Metering mode	Pattern
Light source	Unknown
Flash	Flash did not fire
DateTime subseconds	00
DateTimeOriginal subseconds	00
DateTimeDigitized subseconds	00
Supported Flashpix version	1
Color space	sRGB
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	27 mm
Scene capture type	Standard
Scene control	Low gain up
Contrast	Normal
Saturation	Normal
Sharpness	Normal
Subject distance range	Unknown
Unique image ID	da957a541cfda675a2622a488639a26a
Supported Flashpix version	1
Image width	3,878 px
Image height	2,848 px
Date metadata was last modified	13:36, 18 January 2013
IIM version	21,513