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Gerhard Dangl, using his EXTA - EXposure Time Analyzer (http://www.dangl.at/exta/exta6_e.htm). Measurements with IOTA-VTI device (Prototype P4).
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Gerhard Dangl, using hisEXTA - EXposure Time Analyzer(http://www.dangl.at/exta/exta6_e.htm) Measurements with IOTA-VTI device(Prototype P4)