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English: A cheap aluminium LED flashlight emitting violet visible light as well as UV-A/black light (probably not below 380 nm though). Can be used for checking bank notes, reading "invisible ink" etc. This specific one was bought to “de-yellow” an old Takumar lens, results can be seen here.
Deutsch: Eine billige LED-Taschenlampe, die Licht im violetten sichtbaren und Schwarzlichtbereich (jedoch vermutlich nicht unter 380 nm) ausstrahlt. Kann zur Überprüfung von Banknoten, zum Lesen "unsichtbarer Tinte" etc. verwendet werden.
El Grafo, the copyright holder of this work, hereby publishes it under the following license:
|Camera model||PENTAX K-5|
|Image resolution in width direction||300|
|Image resolution in height direction||300|
|Unit of X and Y resolution||2|
|Exposure time||1/160 sec (0.00625)|
|F number||f / 11|
|ISO speed rating||200|
|Lens focal length||100 mm|
|Date and time original image was generated||2014:10:23 19:59:59|
|Date and time image was made digital data||2014:10:23 19:59:59|
|Focal length in 35 mm film||150 mm|
|Subject distance range||2|
|Copyright holder||El Grafo (CC-BY-SA 4.0)|
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