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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.

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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.

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

Boulders and Spring Torrent, Cascade Creek

May 23, 2011 G Dan Mitchell 2 Comments

Runoff from spring snow melt rushes over boulders of Cascade Creek, Yosemite National Park.

This is a subject that I return to several times each year – a particular section of creek that can be viewed from overhead and which can vary from nearly dry to a wild torrent depending upon the time of year and the character of each new year. During the past year I was inspired by Charles Cramer’s stunning photograph of this subject to look at it more closely and from some different perspectives. (A small bit of “Charlie’s scene” appears in this photograph. I wonder if you can find it? :-)

In some ways, the view of this scene is limited in that you can only see it from a particular range of positions – unless you have the skill of levitation! In another way it is hardly limiting at all since the larger view contains many possible smaller views of rocks and plants and water and light. I still have in mind a horizontal composition in this general area, but so far it hasn’t quite worked. Guess I’ll have to keep trying.

I made this photograph in the morning before any direct light had worked its way around the mountains and down into the stream bed. Beyond the stream, which drops precipitously into the Merced River far below, there was open sky and that is the light that reflects on some of the wet rocks. By playing around to find an appropriate combination of ISO values, aperture, and shutter speed, I tried to get the water to hold some detail but to also be blurred enough to reflect its wild motion as it tumbles down this rocky canyon.

As is sometimes the case, I still cannot decide for sure between this monochrome version and a color version that will appear here before long.

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

Dogwood Blossoms, Forest

May 22, 2011 G Dan Mitchell 2 Comments

A dogwood tree blooms in the forest of Yosemite Valley.

I have a feeling that I need to try a largish print of this one – there is so much detail in the scene that it is almost hard to make sense out of it in a small jpg. In the late afternoon I had wandered along the north edge of the Valley until I reached a point a bit east of the Ahwahnee Hotel. Having finished in this area, I headed around the hotel grounds and toward the Merced River and the former campground areas that were closed after the epic floods of a decade or so ago. This area is in some spots largely overgrown by thick, low plants and in some places I know that there are some good specimens of dogwood.

Although it was early in this year’s dogwood bloom cycle, I found a couple of very good trees in this area, and these two were almost completely in bloom. The forest here is quite dark and thick, and especially during the early evening time when I arrived this made the density of the vegetation seem even more impressive. The idea here was to fill the frame with flower-laden branches with the strong vertical lines of the forest trees behind, but also with detail everywhere in the frame.

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