File:Ivory uv.jpg

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Samples of ivory, bone and ivory substitutes under longwave ultraviolet light(365nm). From left to right: mammoth ivory, bone, tagua nut (vegetable ivory), and celluloid.

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	22:10, 2 April 2010		2,322 × 1,374 (234 KB)	Vmuros (talk \| contribs)	Samples of ivory, bone and ivory substitutes under longwave ultraviolet light(365nm). From left to right: mammoth ivory, bone, tagua nut (vegetable ivory), and celluloid.

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Ivory

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Camera manufacturer	NIKON CORPORATION
Camera model	NIKON D90
Exposure time	2/5 sec (0.4)
F Number	f/3.5
ISO speed rating	200
Date and time of data generation	13:43, 2 April 2010
Lens focal length	18 mm
Width	4,288 px
Height	2,848 px
Bits per component	8 8 8
Compression scheme	Uncompressed
Pixel composition	RGB
Orientation	Normal
Number of components	3
Horizontal resolution	300 dpi
Vertical resolution	300 dpi
Data arrangement	chunky format
Software used	Adobe Photoshop CS2 Windows
File change date and time	15:09, 2 April 2010
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
Pair of black and white reference values	0 255 0 255 0 255
Exposure Program	Shutter priority
Exif version	2.2
Date and time of digitizing	13:43, 2 April 2010
APEX exposure bias	0
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	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	Auto exposure
White balance	Auto white balance
Digital zoom ratio	1
Focal length in 35 mm film	27 mm
Scene capture type	Standard
Scene control	None
Contrast	Normal
Saturation	Normal
Sharpness	Normal
Subject distance range	Unknown
Supported Flashpix version	1
Image width	2,322 px
Image height	1,374 px
Date metadata was last modified	08:09, 2 April 2010