Photography by David Kennedy

On the way to the Devil’s Ice Box

Rock Bridge Memorial State Park boardwalk

Rock Bridge Memorial State Park boardwalk to the Devil's Ice Box, Columbia, Mo. | Canon 5D Mark II and 24-70mm f/2.8L lens @ 34mm; exposed 1/2 second @ f/16, ISO 400.

I took an excursion–albeit brief–to Rock Bridge Memorial State Park in the early evening hours tonight.  A sudden thunderstorm that passed through Columbia this afternoon had left the colors saturated, and the boardwalk to the Devil’s Ice Box (an extensive cave in the park) was slippery.  As I turned back to see the way I came–taking a cue from Dewitt Jones’ sappy, but helpful mantra “Look around, Dewitt”–I saw the sun bursting through the tree canopy.  Normally, for a scene like this, I wouldn’t worry about stopping down beyond f/9, possibly f/11, but for maximum sunburst without risk of image deterioration due to diffraction, I chose f/16.  I prefer to avoid a lens’s minimum aperture–you can test the theory yourself, and you will find that your lens becomes less sharp, not more-so, at its smallest aperture.

One Response to “On the way to the Devil’s Ice Box”

Leave a Reply


Web site content and design copyright 2004-2010 David K. Kennedy, all rights reserved. Contact at 262.939.8398 or e-mail dk@david-kennedy.com