Tag Archives: valley

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

Alpenglow Clouds, Mount Conness

June 28, 2011 G Dan Mitchell Leave a comment

Clouds lit by alpenglow drift across the face of Mount Conness beyond the Tenaya Creek drainage, Yosemite National Park.

Earlier this week I posted another photograph of the same evening. This one was shot a bit earlier (believe it or not!) than the other photograph, as the intense and perhaps unexpected color display was just getting started. I’ll have more to write about the phenomenon in a future blog post that uses this evening as an example, but it almost seem like the sunset progressed backwards (oxymoron alert!) as it went on. It had begun with very boring and low contrast light, somewhat flattened by a haze that took on an increasingly ghastly blue-green hue as the light began to fade. Although the surroundings were spectacular on this opening day of Tioga Pass Road, the light and atmospheric conditions seemed to be conspiring to show them it their worst (literal and figurative) light.

But just at dusk a hint of pink appeared in some of the clouds ringing Mount Conness, the tall peak in the upper left. At first it was so faint that only those of us who were looking for it might have noticed, and we perhaps thought that we were simply trying to convince ourselves that something was going to happen. But the color increased, and as the more distant areas picked up better light, they shone through the foreground haze more clearly, and this haze faded in the same way that a scrim does in a theater when the front lights dim and the stage lights rise.

I find that this type of scene provides some of the most difficult technical and judgment challenges. So often the goal in an image, especially if it is going to be a print, is to try to get as much light into the scene as possible. A lot of the work in post-processing, at least for me, is done with the goal of trying to fill the image with light by means of various careful adjustments, often involving the use of masked curve layers. But here, the coloration depends upon not being overly bright – too much light either decreases the intensity of the pink and purple shadings or else sends them off into the land of the grotesque and gaudy. And the light in shadows – and there are a lot of shaded areas in this scene! – is very blue, much more so than the untrained eye would imagine when looking at the scene in person. This requires another set of tricky and subjective judgments – it would not look right to leave portions of the scene as blue “as they really were,” nor would it look right if the blue were diminished too much. But how much is right? There is no objective answer that I know of, so the goal (for example, on the large granite face of Polly Dome at the left) is to come up with a balance that seems blue enough but not too blue. A similar issue arises in these dark areas when it comes to deciding how bright is bright enough. Believe it or not, virtually nothing in this image is actually black, with the possible exception of a few very tiny areas in the lower left. The luminosity of the very dark areas had to be lifted a bit… but how much is just right? Again, a matter of personal judgment about which there is no objectively right answer.

All of that technical stuff aside, this evening provided one of the most glorious, albeit brief, displays of sublime light I have seen in the Sierra.

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

Cascade Creek Spring Torrent

June 2, 2011 G Dan Mitchell Leave a comment

A small tree stands in the raging spring torrent of Cascade Creek, Yosemite National Park.

This may be the final photograph in this series I shot in early May when I visited this seasonal cascade on the way into Yosemite Valley. Compared to some of the others this one takes in a larger portion of the scene, mainly so that I could include the little leafless tree or bush at the lower left, as it stands against the tremendous force of the rushing water descending steeply among the rocks.

This creek is fed by seasonal snow melt fairly early in the season because the ares that feed its flow are at a relatively lower elevation. For a while each year, but especially in a wet year like this one, this little creek rages as it drops precipitously down this narrow canyon towards a point below where it flows into the Merced River. A bridge provides an interesting vantage point from which to shoot almost directly down into the torrent.

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

Boulders and Spring Torrent, Cascade Creek

May 25, 2011 G Dan Mitchell 4 Comments

I recently posted the black and white version of this photograph of Cascade Creek in full spring flow.

The color version of this photograph posed a series of post-processing questions and problems that others who have worked with a scene like this one can probably imagine. The creek descends through a narrow, rocky gorge at this point and I photographed it early in the morning before any direct sunlight was able to reach the water. Benefits of shooting at this time included the softer light, which tends to both throw some light into the shadows and to soften the brightest highlights. This also permits a longer exposure which allows the water to blur a bit and express the wild motion of the creek. However, since the primary source of light was the open sky, the camera “sees” a very blue scene. (Our visual system compensates for this, so it doesn’t look as blue as it really is when you are on the scene.)

There are several ways to deal with the color balance issues that this situation creates. You could just “go with the blue,” and I’ve seen photographs done that way. I’ve even seen some in which the photograph amped up the saturation and ended up with something very blue. In general, that’s not my thing! I’m most often looking for something that seems “believable” – it may not be objectively accurate, but I intend it to be “subjectively accurate.” With this in mind, my first instinct was simply to warm the color balance in order to move away from the blue cast and toward a warmer one.

My immediate impression was that this was an improvement, and I worked with this interpretation for several days – but something about it didn’t sit quite right with me. (This is perhaps one reason that I also worked with the black and white rendition in the meantime.) Eventually I did some comparisons between the “warmed up” version and the original… and neither seemed like what I was after. The overly blue original looked garish but the overly warm version seemed artificial. I tried some other approaches and finally discovered that because the blue was so intense that I could simply desaturate it – more than you might think – and keep the “colder” coloration without letting it overwhelm the image.

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

Burned Forest, Yosemite Valley, Autumn

May 24, 2011 G Dan Mitchell 2 Comments

Evening light in a burned section of the forest on the floor of Yosemite Valley.

I’ve been sitting on this photograph for a while, so I figure I’ll post it now. I made it last fall – on Halloween, actually! – during a fall color trip to the Valley. Late on my final evening I finally stopped and walked out across the old terminal moraine that crosses the lower Valley not far upstream from Pohono Bridge. (When you drive into the Valley, the road splits, and before long you’ll see the south end of this feature to your left as you go up a short climb.) I started at the north end and as I walked south looking for a photograph it was a very quite, still, and cold evening.

I finally found a spot where I could go down the lower side of the hill just a bit and find a relatively clear shot through the trees that wasn’t blocked by foliage closer to my position. This area has been burned, and I assume that it is the result of one of the management burns that often occur late in the season. These fires attempt to strengthen the forest by reintroducing the natural process and cycles of fire. The result is interesting charring patterns along the lower portions of the trees, temporary burned undergrowth, and then as the recovery takes place a much more open and airy sort of forest as you see in this photograph.

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