Tag Archives: Wind

Aeolian Bedforms

Aeolian Bedforms
“Aeolian Bedforms” — Wind-caused ripples in desert sand dunes, Death Valley.

This is probably the classic notion of what a desert looks like — fields of wind-formed sand dunes stretching into the distance. In truth, such dunes typically cover only a very small fraction of the desert landscape. That’s certainly true in Death Valley National Park, where large, impressive dunes are only found in a handful of locations. We visited one of them on the final morning of our late February trip.

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Sand Patterns

Sand Patterns
“Sand Patterns” — Patterns in sand dunes, Death Valley National Park.

Our main photographic targets during our late-February trip to Death Valley were Lake Manly and the impressive wildflower bloom, but we did schedule one morning visit to the sand dunes. We arrived well before sunrise when it was too dark to see our way into the dunes. Unfortunately, this was not to be a morning for grand dune photographs, since morning overcast blocked the sunlight. So instead we focused on small subjects — plants and flowers, the morning traces of the passage of wildlife, and textures of windblown sand.

I’ll break with the tradition of the these posts and write a bit about a technical photographic topic. A challenge of photographing the sand is that, unless you photograph straight down or find a suitably slanted bit of sand, depth of field can be a challenge. I sometimes employ a solution that surprisingly few photographers seem to use. I have a tilt/shift lens adapter for my landscape camera that lets me attach a medium format zoom lens and use the adapter’s movements to angle the pane of focus to match the surface of the dunes. That’s right — movements with a zoom lens!


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G Dan Mitchell is a California photographer and visual opportunist. His book, “California’s Fall Color: A Photographer’s Guide to Autumn in the Sierra” (Heyday Books) is available directly from him. Blog | Bluesky | Mastodon | Substack Notes | Flickr | Email

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Alfama Steps

Alfama Steps
“Alfama Steps” — Cobblestone steps wind between buildings in the Alfama, Lisbon.

We wandered quite a bit during our May visit to Lisbon this year. (This was part of a 6-week trip that took us to Portugal, Spain, Belgium, and New York City.) When I write “wandered,” I mean this quite literally — we frequently head out with only the vaguest idea of what we’ll explore. In this case, we knew we were headed to the Alfama district, but beyond that we would wing it.

The Alfama is full of narrow, twisty, and often steep streets — just the sort of place to wander slowly. Roughly speaking we first crossed a section of the lower reaches of the district, and then we turned and began climbing. Along the way, we took many detours. If a side street looked interesting we went that way. I made this photograph in a quiet, out of the way area, where steps led uphill between the closely-spaced buildings.

G Dan Mitchell is a California photographer and visual opportunist. His book, “California’s Fall Color: A Photographer’s Guide to Autumn in the Sierra” (Heyday Books) is available directly from him. Blog | Bluesky | Mastodon | Substack Notes | Flickr | Email

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Canyon Light

Canyon Light, Death Valley National Park
“Canyon Light” — Direct light, reflected light, and deep shadows as a canyon winds through desert mountains, Death Valley.

We love fantastically narrow and twisty slot canyons, but those are more of the exception to the rule. You can find those in Death Valley, but more likely you’ll find a scene like this one, at least in canyons that run through steep, rocky mountain ranges, like this one on the east side of the valley. Through much of its length it is more than wide enough that a vehicle could pass, if they were allowed here. Note also the very rugged and broken rock formations — this is not your smooth-walled Utah red rock canyon!

At this spot the canyon takes a couple of very sharp bends around the tall face to the right. When the trend of the canyon lines up the right way, very little direct sunlight penetrates all the way down. Instead the canyon bottom is often in shade, but that shade is filled with soft, reflected light that has bounced between the canyon walls. When I hike these canyons I always look forward to passing through these spots.

G Dan Mitchell is a California photographer and visual opportunist. His book, “California’s Fall Color: A Photographer’s Guide to Autumn in the Sierra” (Heyday Books) is available directly from him. Blog | Bluesky | Mastodon | Substack Notes | Flickr | Email

4 responses to “Canyon Light”

  1. Charlie Colladay Avatar
    Charlie Colladay

    Love this shot! The longer I look at it the more I like it. Forgive me for being such a pendant, but I am so moved by the intricacies of the light in this photo.

    Nice, tight composition of three separate layers: the far layer in direct sunlight; the middle, golden layer and the “giant’s foot” in the foreground. At first glance my eye was drawn to the well defined textural striations of the foreground in a seemingly softer, bluer, open shade type light. But no! It’s actually strongly directional (from the left, reflected by ?) which makes the vertical striations really pop. The far layer is being illuminated by the sun’s direct rays coming from the right, which is how we know the foreground light from the left is reflected (assuming no auxiliary lighting). The middle golden layer is the real mystery. The bright gold color and intensity of the light is greater at the left edge and gradually falls off into open shade light at the far right. The reflected light source must be something close by and behind the “giant’s foot” that is strongly reflecting the sun’s rays. It’s almost like the photographer laid out a large gold colored tarp to act as a reflector. But I doubt that. More likely it’s a warm colored rock formation that is serving as the reflector. Beautiful.

    Whatever the case…this is an amazing photo! I love it when a photo strikes you at first and then even more so as your eye roams around and you try to figure out why you like it so much. In the final analysis, it’s no surprise how often it comes down to the “Light” and we are then reminded that the Greek root of “photography” is “light drawing”.

    Nice work Dan!

    Charlie Colladay

    1. G Dan Mitchell Avatar
      G Dan Mitchell

      Thanks Charlie,

      YOu certainly have an eye for light!

      The combination of layers and light is pretty much what this photograph is “about.” As you surmised, there are three kinds of ight (at least) at work in the photograph. OK, maybe four.

      There is the direct sunlight on the far canyon wall. Then there is the light reflected from a(n out of sight) reddish section of cliff that illuminates the middle face. The foreground light is coming from behind and above my camera position — a combination of more reflected light and light from the open sky. The forth kind of light? The deeper shadows with the more blue tones.

      One of the things I love about these canyons is precisely that variety of lighting, and especially the way that the light picks up colors from the sky and from whatever surface reflects it.

      Dan

  2. Greg Avatar
    Greg

    Dan:

    It reminds me of Dedeckera Canyon over at the Eureka Dunes.

    1. G Dan Mitchell Avatar
      G Dan Mitchell

      Thanks for sharing that. I’ve been to Eureka several times, but I have never investigated that canyon.

      Dan

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