Image:Ronja beam Prostejov.jpg
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Ronja light beam as observed from a point on the other side of the datalink track. The beam is generated by a single high-output LED with a 13cm glass lens. The beam looks impressive. It is because it's night and because the light from the LED is concentrated into a narrow beam. The beam is about 4 meters wide in 1km distance. If you walk few steps from the oberver point, the bright light vanishes. The place is Prostejov, Czech Republic. (c) GFDL pvfree.net.
Taken from here: http://images.twibright.com/tns/18b2.html Now I added a GFDL icon to the website to prevent some overzealous copyright watchman to mark this image for deletion again. As if it proved the content is under GFDL...
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| Date/Time | Dimensions | User | Comment | |
|---|---|---|---|---|
| current | 20:29, 18 November 2006 | 2,048×1,536 (684 KB) | Clock twibright | (Ronja light beam as observed from a point on the other side of the datalink track. Generated by a single high-output LED with a 13cm glass lens. The place is Prostejov, Czech Republic. The picture was sent by the people who built the Ronja link in Proste) |
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Metadata
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 | Minolta Co., Ltd. |
|---|---|
| Camera model | DiMAGE Z1 |
| Exposure time | 30/1 sec (30) |
| F-number | f/8 |
| Date and time of data generation | 19:31, 5 December 2004 |
| Lens focal length | 30.1 mm |
| Image title | MINOLTA DIGITAL CAMERA |
| Orientation | Normal |
| Horizontal resolution | 72 dpi |
| Vertical resolution | 72 dpi |
| Software used | Ver. 1.00 |
| File change date and time | 19:31, 5 December 2004 |
| Y and C positioning | 2 |
| Exposure Program | Manual |
| ISO speed rating | 100 |
| Exif version | 2.2 |
| Date and time of digitizing | 19:31, 5 December 2004 |
| Image compression mode | 2 |
| Exposure bias | 0 |
| Maximum land aperture | 3.6 |
| Metering mode | CenterWeightedAverage |
| Light source | Unknown |
| Flash | 16 |
| Color space | sRGB |
| Custom image processing | Custom process |
| Exposure mode | Manual exposure |
| White balance | Auto white balance |
| Digital zoom ratio | 0 |
| Focal length in 35 mm film | 197 |
| Scene capture type | Standard |
| Contrast | Normal |
| Saturation | Normal |
| Sharpness | Hard |
| Subject distance range | Distant view |
