File:Limescale-in-pipe.jpg

Size of this preview: 695 × 599 pixels. Other resolution: 936 × 807 pixels.

Original file (936 × 807 pixels, file size: 133 KB, MIME type: image/jpeg)

Summary[edit]

Summary
Description	Heat exchanger pipe cross-section with the thick scale crust on the inside wall.
Source	Wikimedia Commons file page
Author	Александр Юрьевич Лебедев
Permission	See original Commons license details.

Public Domain

This file is in the public domain and may be used without restriction.

Please see the linked source page for the original file history, attribution information, and licensing details.

Original attribution and file history: Wikimedia Commons

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

	Date/Time	Thumbnail	Dimensions	User	Comment
current	03:19, 5 June 2026		936 × 807 (133 KB)	Maintenance script (talk \| contribs)	== Summary == Importing file

You cannot overwrite this file.

The following 2 pages use 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	NIKON
Camera model	E4100
Exposure time	10/601 sec (0.016638935108153)
F Number	f/4.9
ISO speed rating	50
Date and time of data generation	19:05, 27 February 2010
Lens focal length	17.4 mm
Orientation	Normal
Horizontal resolution	72 dpi
Vertical resolution	72 dpi
Software used	GIMP 2.6.6
File change date and time	18:05, 27 February 2010
Y and C positioning	Co-sited
Exposure Program	Normal program
Exif version	2.2
Date and time of digitizing	19:05, 27 February 2010
Meaning of each component	Y Cb Cr does not exist
Image compression mode	2
APEX exposure bias	0
Maximum land aperture	3 APEX (f/2.83)
Metering mode	Pattern
Light source	Unknown
Flash	Flash fired, auto mode
Supported Flashpix version	1
Color space	sRGB
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	0
Focal length in 35 mm film	105 mm
Scene capture type	Standard
Scene control	None
Contrast	Normal
Saturation	Normal
Sharpness	Normal
Subject distance range	Unknown