Seminar room by Curt Weinhold

Curt Weinhold | all galleries >> Galleries >> Marcellus Shale Gas > Seminar room


18-MAR-2010

Jim Clark, PennState Extension Agent.
Subject was water quality

Nikon D700
1/20s f/5.6 at 42.0mm iso560 full exif

other sizes: small medium large original auto

All images copyrighted; Curt Weinhold photo

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