Photographs: Architecture, Photographs: Northern California, Photographs: San Francisco, Photographs: Structures and Objects

North Tower of the Golden Gate Bridge, San Francisco Oakland Bay Bridge

February 13, 2011 G Dan Mitchell 3 Comments

Black and white photograph of the north tower of the Golden Gate Bridge silhouetted against San Francisco Bay morning haze and the San Francisco Oakland Bay Bridge.

A week ago I posted a few other photographs from this early morning winter visit to the upper reaches of the Marin Headlands, from which I photographed the bridges of the San Francisco Bay, backlit by early sun and partially obscured by a low layer of fog and haze. Since I am not fond of adding poetic (or pseudo-poetic) titles to my photographs, preferring to let them say whatever they have to say on their own, I have resisted the temptation to call this one “The Three Towers.” ;-)

The dark shape in the foreground that dominates the frame is, of course, the north tower of the Golden Gate Bridge. Shooting it in this light is trickier than it might seem like it should be. The light coming from beyond, reflected and amplified by water and haze, is very bright – almost hard to look at directly. So the west side of the bridge is deeply shadowed. I like the dark and stark shape of the tower here – as opposed to the more familiar photographs front or side lit by late afternoon or evening light – but the trick is to keep just a bit of detail in that nearly black tower.

The scene posed another technical issue, though it probably isn’t visible in this small version. As the sun comes up and heats the atmosphere, and as wind blows (and it was windy on this morning!) there is a lot of atmospheric turbulence. Normally you wouldn’t notice this at all, but when you shoot with a long lens and enlarge the image you quickly see that sharp edges and fine lines take on an almost “painterly” quality as the atmosphere shimmers, much in the manner of a mirage.

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Photographs: Nature, Photographs: Northern California, Photographs: Sierra Nevada, Photographs: Yosemite

Cascade, Reflected Sunlight

February 12, 2011 G Dan Mitchell 4 Comments

Sunlight reflects on granite ledges next to cascades on Tenaya Creek.

In this iteration of the “blurry-fast-moving-water-in-Sierra-creek” photograph, I was looking to cram a variety of elements into the frame – as you can see, the entire photograph is not filled with water. There is a transition from white water with flashes of sunlit light at the tops of the waves, through the water with smaller areas of foam, to water reflecting the golden late afternoon light from a cliff face on the other side of the creek, to some bits of streamside granite slabs along the lower right edge of the frame. To me, these areas of shallow water and wet rock reflecting more distant light almost have a molten quality.

One of the trickiest things about this photograph for me was dealing with the strong contrast between very blue tones in the shaded parts of the water and the very warm tones of the reflections. As every photographer knows, the light in shade can be very blue, especially when the subject is supposed to be white and is lit almost entirely by the blue sky, as is the case in parts of the turbulent water. Adjustments are necessary in order to make it look realistic and conform with the colors that our eyes tell are are there. (Our vision system is remarkable… but it is not objectively accurate!) But adjustments to the blue water, if applied to the warm tones of the reflecting granite, can end up looking bizarre and overdone in the opposite direction!

Photographs: Nature, Photographs: Northern California, Photographs: Sierra Nevada, Photographs: Yosemite

Dead Branch, Glaciated Granite

February 11, 2011 G Dan Mitchell 2 Comments

A dead branch lies on glacially-polished granite in the Yosemite National Park back-country.

I made a promise to someone to not say where this photograph was made – I’ll just say it is in Yosemite National Park. But the exact location really doesn’t matter too much, as these large expanses of glaciated granite slab are a common feature throughout the park, and you could find similarly interesting geology in thousands of locations.

I was a little surprised to find this weathered branch in this location, since it was a good distance from any trees and also not near any flowing water. Besides its location, a few other things about it caught my attention. First, its curving shapes lined up in a way tht seems to tie in with the bit of glacially-polished granite that lies beneath it. (And, yes, this is exactly where the branch was when I found it.) In a way, the larger shape of the lighter area of granite winding across the photograph from side to side almost seems like a much thicker echo of the curving shape of the branch. In addition, the warm brown tones of the branch seem to stand out a bit – though perhaps more in a larger print – against the relatively drab color of the rock.

Commentary, Equipment, Ideas

Megapixel Mania – An Extended Riff

February 10, 2011 G Dan Mitchell 11 Comments

I read (yet another… ;-) megapixel rant somewhere online yesterday, and it got me thinking again about the fixation on megapixels as a measure of camera “value,” and the odd and sometimes irrational ways that people respond to this issue. It is well known that over the past decade or more, as digital photography technologies have become more and more prevalent (displacing film in many areas), camera technology has continued to advance in many ways. Among these advances is the ability to increase the number of photosites on sensors of a given size – e.g. give us “more megapixels.”

The responses to this tend to fall into three broad categories: Continue reading Megapixel Mania – An Extended Riff →

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