File:Robertson screw.jpg

Size of this preview: 329 × 600 pixels. Other resolution: 950 × 1,732 pixels.

Original file ‎(950 × 1,732 pixels, file size: 573 KB, MIME type: image/jpeg)

This file is from a shared repository and may be used by other projects. The description on its file description page there is shown below.

Wikipedia does not have a File page with this exact name.

Other reasons this message may be displayed:

If an image was recently created here, it may not be visible yet because of a delay in updating the database; wait a few minutes or try the purge function.
Titles on Wikipedia are case sensitive except for the first character; please check alternative capitalizations and consider adding a redirect here to the correct title.
If the page has been deleted, check the deletion log, and see Why was the page I created deleted?

File history

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

	Date/Time	Thumbnail	Dimensions	User	Comment
current	21:02, 3 June 2010		950 × 1,732 (573 KB)	Wizard191	Cropped.

The following file is a duplicate of this file (more details):

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 PowerShot G9
Exposure time	1/30 sec (0.033333333333333)
F Number	f/2.8
ISO speed rating	200
Date and time of data generation	10:09, 9 October 2007
Lens focal length	7.4 mm
Software used	QuickTime 7.2
File change date and time	10:16, 9 October 2007
Y and C positioning	Centered
Exif version	2.2
Date and time of digitizing	10:09, 9 October 2007
APEX shutter speed	4.90625
APEX aperture	2.96875
APEX exposure bias	0
Maximum land aperture	2.96875 APEX (f/2.8)
Metering mode	Pattern
Flash	Flash did not fire, compulsory flash suppression
Color space	sRGB
Sensing method	One-chip color area sensor