Moonrise behind the Kunětická hora castle

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Moonrise behind the Kunětická hora castle
Object: Moonrise behind the Kunětická hora castle
Location, date: 50°04 '5.421"N 15°46 '58.655"E, 12.11.2011 - 17:35:04
Focal lenght, speed: 500 mm, f/6.67
Camera: Canon EOS 350D on tripod
Senzor: APS-C 22.2 x 14.8 mm, pixel 6.4 um
Lens: Pentax 75 SDHF
Expozure: 1/25 sec + 1 sec + 2 sec, ISO 400
Filter: none

Photo was taken with Pentax refractor of focal lenght 500 mm at distance about 2.5 km from the castle. The snapshot is not photomontage as is very usual with this kind of photos. Photographing of this object was preceded with hour of calculations of the optimal coordinates for shooting. The coordinates had to be calculated with precision at 25 meters and optimal conditions lasted only about 10 seconds.