Pyramid and Stream

At the same location were I photographed the Gnomon, this pyramid structure appears to be the source of the stream that runs through the garden.  To smooth out the ripples in the stream, I chose an exposure time of 1 minute.  The reciprocity departure, caused by the long exposure, lowered the dark values almost 1 full zone below the measured values.  Detail in the very dark areas was just barely maintained in the actual transparency.

Camera: Hasselblad 503CW

Lens: Hasselblad Distagon 50mm f4 CF

 Film: Ektachrome 64

Development: Normal