Problemata physica is a photography weblog.
We, that is, Michael Schröder and Stefan Steins, have been running this blog collaboratively since 2010. We are currently based in Essen and Marburg, Germany.
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Michael Schröder & Stefan Steins
info [at] problemtaphysica [dot] de
Images may only be used with the respective author’s permission.
Despite careful control we assume no liability for the contents of externally linked pages.