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The pipe organ of the Cathedral of Santa Maria of Palma de Mallorca, Spain.
*Photograph taken with Nikon D7000, 10-20mm Simga lens @ 18mm, iso4000, f/5.3, handheld. .HDR created from single raw file, exposures adjusted (-2, -1.5, -1, -0.5, 0, +0.5, +1, +1.5), converted to tiffs and then finally to jpegs and Tonemapped in Photomatix. Final processing in PS CS4.
Information sourced from the following: