File:Tetrahedral Aperture.jpg

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Description	The aperture leading to the tetrahedral chamber. Same genesis as other two photos with this article.
Source	Own work
Date	2015
Author	User:Martin Gibson
Permission (Reusing this file)	See below.

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	18:57, 29 April 2015		640 × 480 (50 KB)	Martin Gibson (discuss \| contribs)	The aperture leading to the tetrahedral chamber. Same genesis as other two photos with this article.

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Camera manufacturer	Apple
Camera model	iPhone 4S
Exposure time	1/20 sec (0.05)
F Number	f/2.4
ISO speed rating	80
Date and time of data generation	12:00, 8 June 2013
Lens focal length	4.28 mm
Orientation	Normal
Horizontal resolution	72 dpi
Vertical resolution	72 dpi
Software used	5.0.1
File change date and time	12:00, 8 June 2013
Exposure Program	Normal program
Exif version	2.21
Date and time of digitizing	12:00, 8 June 2013
Meaning of each component	does not exist does not exist does not exist Y
APEX shutter speed	4.3219284603421
APEX aperture	2.5260691271236
APEX brightness	3.5543710021322
Metering mode	Pattern
Flash	Flash did not fire, compulsory flash suppression
Supported Flashpix version	1
Color space	sRGB
Sensing method	One-chip color area sensor
Exposure mode	Auto exposure
White balance	Auto white balance
Digital zoom ratio	1.6607744107744
Focal length in 35 mm film	35 mm
Scene capture type	Standard
Sharpness	Normal