File:1851Wadokei.jpg

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1851 Japanese-made perpetual clockwatch (Wadokei).

Tokyo National Science Museum.

Personal photograph, 2004.

public domain

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	20:55, 21 December 2005		441 × 587 (128 KB)	Kevillips (talk \| contribs)	1851 Japanese-made perpetual clockwatch (Wadokei). Tokyo National Science Museum. Personal photograph, 2004. http://en.wikipedia.org/wiki/Image:1851Wadokei.JPG public domain

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Camera manufacturer	Canon
Camera model	Canon PowerShot S110
Exposure time	1/8 sec (0.125)
F Number	f/4
Date and time of data generation	13:52, 24 December 2004
Lens focal length	10.8125 mm
File change date and time	13:52, 24 December 2004
Y and C positioning	Centered
Exif version	2.1
Date and time of digitizing	13:52, 24 December 2004
Image compression mode	5
APEX shutter speed	3
APEX aperture	4
APEX exposure bias	0
Maximum land aperture	2.9708557128906 APEX (f/2.8)
Subject distance	0.657 meters
Metering mode	Pattern
Flash	Flash did not fire
Color space	sRGB
Focal plane X resolution	7,766.9902912621
Focal plane Y resolution	7,741.935483871
Focal plane resolution unit	inches
Sensing method	One-chip color area sensor