Night storm 6.8.2012

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Porer lighthouse
Object: Lightning over Hradec Kralove and Pardubice
Location, date: Chlum u Hradce Králové, 6.8.2012
Focal lenght, speed: 53 mm, f/4.5
Camera: Canon EOS 350D on tripod
Senzor: 8.0 MPix APS-C, 22.2 x 14.8 mm, pixel 6.4 um
Lens: Sigma 17-70 mm f/2.8-4.5 DC Macro
Expozure: 30 sec, ISO 400
Filter: -