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Dave Wyman | all galleries >> A Photograph On Occasion > From Nothing to Somthing - Hoar Frost
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From Nothing to Somthing - Hoar Frost

From Nothing to Somthing - Hoar Frost

Yosemite Valley, California, USA

Frost - ice - will form from water vapor when solid surfaces - in this case pine needles - are cooled to below the dew point of the adjacent air. When that happens, water vapor turns into a solid, too. The size of a frost crystal is determined by the amount water vapor available as well as the amount of time available for formation. And it appears gravity has a part to play, too, dictating the direction the crystals will form.

In this photograph, there was both ample moisture in the air and a long, cold night that allowed ample growth of the frost.

Nikon D300 ,Nikon 200mm macro lens, w/ extension tube
1/180s f/11.0 at 200.0mm - ISO 800 full exif

other sizes: small medium large original
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Jean Ray09-Apr-2009 03:16
I really like this. Great detail.
Marcia Colelli26-Feb-2009 02:03
wonderful detail and composition V
Bryan Murahashi25-Feb-2009 05:58
A beautiful capture of these ice crystals.
Carol E Sandgren25-Feb-2009 03:42
Icicle fringe! Fascinating image, Dave!
Jola Dziubinska25-Feb-2009 02:06
Very nice scene of winter forms and colors.
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