Okay, so here's an interesting phenomenon, one which I did not foresee as I
looked through the viewfinder. The image is from Scotland's Isle of Mull, and
comprises a field in the foreground, a loch and rainbow in the middle ground,
and a headland in the background. (Well, the headland is part of the middle
ground, too.)
The problem, or phenomenon, is this: The headland was shaped by extreme
glaciation, to the degree that it appears to have parallel lines drawn upon it.
Without the rainbow, these would be interesting. Indeed, there is a glen in
Scotland that is advertised as Parallel Roads, or some such, because of
distinct parallel lines "drawn" by ancient glaciers.
But place a rainbow in front of this headland with its parallel lines, and it
looks for all the world like artifacts have insinuated themselves into the
image. On the screen _and_ in a print, it looks like a funky moire pattern, and
thus relegates the image to one of minor interest rather than a breath-taking
shot. (Note the waterfalls in the distance, and how the gale-force winds and
blowing the water up and back.)
http://zone-10.com/tope2/main.php?g2_itemId=9158
Don't know what I could do to make the image more useful, or perhaps it's
useful enough as an example in photographic frustration. <g>
--Bob Whitmire
Certified Neanderthal
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