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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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 image.

Image title MINOLTA DIGITAL CAMERA
Camera manufacturer Minolta Co., Ltd.
Camera model DiMAGE Z1
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 time 30/1 sec (30)
F-number f/8
Exposure Program Manual
ISO speed rating 100
Exif version 2.2
Date and time of data generation 19:31, 5 December 2004
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
Lens focal length 30.1 mm
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
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