File:Circles in Thin Ice, Lake Baikal, Russia.jpg
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This file is from Wikimedia Commons and may be used by other projects. The description on its file description page there is shown below.
Summary
| DescriptionCircles in Thin Ice, Lake Baikal, Russia.jpg |
English: This image, a detailed astronaut photograph, shows a circle of thin ice (dark in color, with a diameter of about 4.4 kilometers); this is the focal point for ice break up in the very southern end of the lake. |
| Date | |
| Source | NASA Earth Observatory |
| Author | Image provided by the ISS Crew Earth Observations experiment and Image Science & Analysis Laboratory, Johnson Space Center. |
This image was taken with a Nikon 2DXs digital camera fitted with a 400mm lens.
Licensing
| Public domainPublic domainfalsefalse |
| This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.) | ||
Warnings:
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Captions
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Items portrayed in this file
depicts
20 April 2009
0.000625 second
5.6
400 millimetre
400
image/jpeg
d3ee42c7b7ad4fc5334a52a5dff7dee4c4803fd8
811,930 byte
960 pixel
1,440 pixel
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 13:01, 12 April 2010 | 1,440 × 960 (793 KB) | wikimediacommons>Originalwana | colour corrected |
File usage
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Metadata
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If the file has been modified from its original state, some details may not fully reflect the modified file.
| Camera manufacturer | NIKON CORPORATION |
|---|---|
| Camera model | NIKON D3 |
| Exposure time | 1/1,600 sec (0.000625) |
| F Number | f/5.6 |
| ISO speed rating | 400 |
| Date and time of data generation | 23:51, 23 April 2009 |
| Lens focal length | 400 mm |
| Orientation | Normal |
| Horizontal resolution | 240 dpi |
| Vertical resolution | 240 dpi |
| Software used | Adobe Photoshop CS4 Macintosh |
| File change date and time | 11:32, 22 May 2009 |
| Exposure Program | Aperture priority |
| Exif version | 2.21 |
| Date and time of digitizing | 23:51, 23 April 2009 |
| APEX shutter speed | 10.643856 |
| APEX aperture | 4.970854 |
| Maximum land aperture | 3 APEX (f/2.83) |
| Metering mode | Pattern |
| Light source | Unknown |
| Flash | Flash did not fire |
| DateTime subseconds | 24 |
| DateTimeOriginal subseconds | 24 |
| DateTimeDigitized subseconds | 24 |
| Color space | sRGB |
| Sensing method | One-chip color area sensor |
| Custom image processing | Normal process |
| Exposure mode | Auto exposure |
| White balance | Auto white balance |
| Digital zoom ratio | 1 |
| Focal length in 35 mm film | 400 mm |
| Scene capture type | Standard |
| Contrast | Normal |
| Saturation | Normal |
| Sharpness | Normal |
| Subject distance range | Unknown |

