Eloquent Images by Gary Hart
Insight, information, and inspiration for the inquisitive nature photographer
The secret world before the sun
Before Sunrise, Mt. Whitney and the Alabama Hills, California
Canon EOS 5D Mark III
30 seconds
F/16
ISO 400
70 mm
Compared to the human eye, the camera’s vision has many shortcomings (as photographers are quick to lament). At the top of photographers’ list is the very narrow gap separating the brightest and darkest tones a camera can capture: dynamic range.
But while the camera taketh away, it also giveth. Experienced photographers understand that what we perceive as complete darkness is really just our eyes’ relatively limited ability to gather light, combined with the brain’s insistence on processing this limited input instantaneously. But a camera’s sensor (or a rectangle of unexposed film) can accumulate all the light striking it for whatever duration we prescribe, thereby stretching its “instant” of perception indefinitely. Advantage camera.
For example, the camera’s narrow dynamic range is (exquisitely) mitigated in the barely perceptible light preceding sunrise and following sunset. Unlike night photography, when the light in the sky is so faint that extremely long exposures are required to register any foreground detail, and daylight/moonlight photography, when unidirectional light casts high contrast shadows that exceed a camera’s dynamic range, pre-sunrise/post-sunset twilight light is spread so evenly overhead that most shadows disappear.
About this image
Horizon-to-horizon skylight made dynamic range a non-factor in the above Alabama Hills pre-sunrise scene, while my camera’s instant-stretching ability revealed beauty present in a landscape that was nearly invisible to my eyes.
I arrived at this scene about 45 minutes before sunrise, but knew from experience I wasn’t too early to get to work. White with snow and towering 10,000 vertical feet above my location in the Alabama Hills, Mt. Whitney jutted in dramatic contrast to the dark sky. As my eyes adjusted to the limited light, the jumbled rocks of the Alabama Hills became vague, colorless shapes. Anyone relying on their eyes on this January morning would likely conclude that there’s not yet enough light for photography. But I knew better.
I started by juxtaposing a nearby fortress of boulders against Whitney’s serrated outline. While the mountains were the dominant feature to my eyes, I knew a long exposure would make the nearby rocks equally prominent, making their sharpness essential. Limited light made autofocus out of the question, so I stopped down to f16 to increase my margin for error and focused manually.
As expected, a thirty-second exposure at ISO 400 uncovered volumes of invisible detail and color my eyes missed. (It took two or three exposures to get the focus, exposure, and composition right, as I felt like I was working blind, and my meter was of little value in the darkness.) Though I was photographing in a fairly stiff (and frigid!) breeze at 4,500 feet, it was nothing like the hurricane wind that smeared the clouds above Whitney into an ethereal glaze. Another revelation of the long exposure was the sky’s exquisite, natural (not processing-enhanced) blue-hour hue.
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A twilight gallery
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Eloquent Images by Gary Hart 
As usual, Gary, a most splendid demonstration of your impeccable eye.
Thanks, James. This is a great example of how the photographer’s eye must extend beyond his head (since it was almost too dark to see).
Once again an extraordinary shot…. (but I keep seeing a teddy bear peeping over the tallest boulder).
No teddy bears were harmed in the making of this picture.
😀
Thanks for sharing!
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