File:Alumina.jpg

Original file ‎(2,147 × 1,431 pixels, file size: 1.01 MB, MIME type: image/jpeg)

Chemically pure activated alumina, an uncut sapphire and an uncut ruby (natural, not gem quality). Photograph by BJ Kühn

File history

Click on a date/time to view the file as it appeared at that time.

	Date/Time	Thumbnail	Dimensions	User	Comment
current	10:47, 20 February 2013		2,147 × 1,431 (1.01 MB)	ChristiaanK (talk \| contribs)	Chemically pure activated alumina, an uncut sapphire and an uncut ruby (natural, not gem quality). Photograph by BJ Kühn

You cannot overwrite this file.

The following page uses this file:

This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.

If the file has been modified from its original state, some details may not fully reflect the modified file.

Camera manufacturer	Canon
Camera model	Canon EOS 1100D
Author	Johann Kuhn
Exposure time	1/80 sec (0.0125)
F Number	f/13
ISO speed rating	800
Date and time of data generation	18:27, 20 February 2013
Lens focal length	55 mm
Orientation	Normal
Horizontal resolution	72 dpi
Vertical resolution	72 dpi
File change date and time	19:45, 20 February 2013
Y and C positioning	Co-sited
Exposure Program	Aperture priority
Exif version	2.3
Date and time of digitizing	18:27, 20 February 2013
APEX shutter speed	6.375
APEX aperture	7.375
APEX exposure bias	0
Metering mode	Pattern
Flash	Flash did not fire, compulsory flash suppression
DateTime subseconds	60
DateTimeOriginal subseconds	60
DateTimeDigitized subseconds	60
Color space	sRGB
Focal plane X resolution	4,720.4419889503
Focal plane Y resolution	4,786.5546218487
Focal plane resolution unit	inches
Custom image processing	Normal process
Exposure mode	Auto exposure
White balance	Auto white balance
Scene capture type	Standard