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Treppenhaus r(phi) = a / phi

Treppenhaus r(phi) = a / phi

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Gauss1979


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Treppenhaus r(phi) = a / phi

angelehnt an eine hyperbolische Spirale

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Camera PENTAX K-5
Lens smc PENTAX-DA 18-55mm F3.5-5.6 AL WR
Aperture 4
Exposure time 1/100
Focus length 18.0 mm
ISO 200