File:Tools-olfa-knife.JPG

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Olfa knife, a tool used in book and paper conservation. Photo by Melina Avery.

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	19:31, 7 May 2020		1,274 × 3,821 (552 KB)	Mavery (talk \| contribs)	Olfa knife, a tool used in book and paper conservation. Photo by Melina Avery.

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Camera manufacturer	Apple
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Exposure time	1/30 sec (0.033333333333333)
F Number	f/2.2
ISO speed rating	200
Date and time of data generation	16:51, 6 May 2020
Lens focal length	4.15 mm
Latitude	41° 47′ 47.75″ N
Longitude	87° 35′ 21.41″ W
Altitude	181.62 meters above sea level
Horizontal resolution	72 dpi
Vertical resolution	72 dpi
Software used	13.3.1
File change date and time	16:51, 6 May 2020
Subsampling ratio of Y to C	2 2
Exposure Program	Normal program
Exif version	2.31
Date and time of digitizing	16:51, 6 May 2020
Meaning of each component	Y Cb Cr does not exist
APEX shutter speed	4.9069915868871
APEX aperture	2.2750070476914
APEX brightness	0.86136526542143
APEX exposure bias	0
Metering mode	Spot
Flash	Flash did not fire, auto mode
DateTimeOriginal subseconds	243
DateTimeDigitized subseconds	243
Supported Flashpix version	1
Sensing method	One-chip color area sensor
Scene type	A directly photographed image
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White balance	Auto white balance
Focal length in 35 mm film	29 mm
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Speed unit	Kilometers per hour
Speed of GPS receiver	0.7200000286104
Reference for direction of image	True direction
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GPS tag version	2.2.0.0