File:CDRomPits.jpg
![File:CDRomPits.jpg](http://upload.wikimedia.org/wikipedia/commons/thumb/6/6f/CDRomPits.jpg/800px-CDRomPits.jpg)
Original file (900 × 600 pixels, file size: 257 KB, MIME type: image/jpeg)
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Summary
Comes from English wikipedia http://en.wikipedia.org/wiki/Image:CDRomPits.jpg the page states GFDL 1.2
Summary from en: wiki
An audio CD of mine. Portion shown is the innermost, as such would doubtless be the intro to the first track. Taken with a Sony T-33 zoomed in about 2X, held up to the 10X eyepiece of a microscope using the 100X lens (100X total, 10X). The CD was placed directly on the microscope, and illuminated from the side with a very small bright-white LED.
The pits in a CD are 500nm wide, between 830nm and 3000nm long and 150nm deep.
The total track width, including pits and space between, is 1600nm between intervals.
Image created by Jason Kennerly in 2007.
History from en: wiki
- (cur) (last) 10:39, 15 July 2007 Zaphraud (Talk | contribs) (626 bytes) (→Summary) (undo)
- (cur) (last) 01:38, 13 July 2007 Zaphraud (Talk | contribs) (608 bytes) (Clarify sizings to indicate track width instead of just pit size.) (undo)
- (cur) (last) 01:33, 13 July 2007 Zaphraud (Talk | contribs) m (521 bytes) (Real World Name attribute.) (undo)
- (cur) (last) 11:10, 12 July 2007 Zaphraud (Talk | contribs) (479 bytes) (→Summary) (undo)
- (cur) (last) 11:06, 12 July 2007 Zaphraud (Talk | contribs) (475 bytes) (An audio CD of mine. Portion shown is the innermost, as such would doubtless be the intro to the first track. Taken with a Sony T-33 zoomed in about 2X, held up to the 10X eyepiece of a microscope using the 100X lens. The CD was placed directly on the mic)
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Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 16:19, 16 July 2007 | ![]() | 900 × 600 (257 KB) | B4283 | Comes from English wikipedia http://en.wikipedia.org/wiki/Image:CDRomPits.jpg the page states GFDL 1.2 |
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Metadata
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Camera manufacturer | SONY |
---|---|
Camera model | DSC-T33 |
Exposure time | 1/50 sec (0.02) |
F-number | f/4.4 |
ISO speed rating | 250 |
Date and time of data generation | 01:02, 16 April 2007 |
Lens focal length | 18.5 mm |
Orientation | Normal |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
File change date and time | 01:02, 16 April 2007 |
Y and C positioning | Co-sited |
Exposure Program | Normal program |
Exif version | 2.2 |
Date and time of digitizing | 01:02, 16 April 2007 |
Image compression mode | 8 |
Exposure bias | 0 |
Maximum land aperture | 3.625 APEX (f/3.51) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash fired, strobe return light not detected, auto mode |
Color space | sRGB |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Scene capture type | Standard |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |