Tag Archives: creek

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

Sunset and Moonrise, Kuna Crest

August 15, 2011 G Dan Mitchell Leave a comment

The nearly- full moon rises above the sunset light on Kuna Crest, Yosemite National Park.

Kuna Crest runs up Lyell Canyon between the Lyell and Dana forks of the Tuolumne River with the Sierra crest at one end and Mammoth Peak at the other. (Mammoth Peak is the large peak straight in front of you as you top Tioga Pass entering Yosemite National Park.) This ridge can catch great sunset light during the summer, and as I came down from the pass, heading back toward my camp at Porcupine Flat, and saw the almost full moon appearing over the shoulder of the ridge I decided to quickly stop and make a few exposures as the last light was about to leave the forest and soon after the peaks.

If you have tried photographing a scene that includes the moon in the early evening you know that the exposure is a tricky thing. The moon is lit by daylight, so it isn’t too surprising that the “correct” exposure for the moon is close to a normal daytime exposure. But that is not the right exposure for the rest of the scene, which turns out to be quite a bit darker than daylight at this time of day. In this scene things were even more complicates as the very saturated red colors on the ridge were quite “hot,” while the foreground meadow and forest was in shade and both darker and cooler in color. Basically, the dynamic range between the moon and the foreground was too large for a single exposure… so I made several.

At the time of exposure I thought that I might need as many as three component images in the final photograph – they would be one exposed for the bright ridge and sky, one exposed for the rather dark and shadowed foreground, and possibly a third that correctly exposed the moon. To be on the safe side I bracketed four exposures. When I began to work on the image I figured out that in this case I could construct a final “believable” image from two exposures if I was careful and could make some additional adjustments during post.

This is an example of a shot in which the use of a graduated neutral density filter could have been problematic, but where exposure blending could work very well. (“Exposure blending” is one term for the process of manually combining two component exposures using masked layers in Photoshop. No, it is not the same thing as HDR photography.) One of the things that would have been quite tricking using graduated neutral density filters is that the division between the brighter upper half and the darker lower half is not linear. Instead, the roughly follows the curved boundary between the lower meadow and dark trees and the still sunlit trees and the peak and sky.

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Photographs: Coastal Redwoods, Photographs: Nature, Photographs: Northern California

Forest, Gazos Creek

July 14, 2011 G Dan Mitchell Leave a comment

Today I used the excuse of driving my son over the hill to UC-Santa Cruz for his summer school class to get in a short trip up the coast north of Santa Cruz. We are in the midst of the “June gloom” period along the coast of northern California, and the fog doesn’t clear until later in the day, and never does clear completely in some areas. As I left Santa Cruz the fog bank was visible but well off-shore, but as I travelled north I eventually encountered it right around Año Nuevo State Reserve.

I had a vague plan to check out Gazos Creek Road, having heard from some other photographers that there are interesting redwood trees and other subjects in that area. Since I still had some time, I turned up the road and it quickly narrowed as it followed the creek and the bottom of the canyon into the Santa Cruz Mountains. Since this was more or less a scouting trip, I drove all the way to the end of the road without stopping much, but on the way back down I decided to stop and make some photographs of this grove of new-grown coast redwoods mixed with the curving trunks of big leaf maple trees.

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.

All media © Copyright G Dan Mitchell and others as indicated. Any use requires advance permission from G Dan Mitchell.

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

Mist, Trees, and Boulders – Cascade Creek

July 5, 2011 G Dan Mitchell Leave a comment

Mist and spray from spring runoff fill the air in the boulder-strewn canyon of Cascade Creek, Yosemite National Park.

Making this photograph was an “interesting” experience! I visited Cascade Creek on June 18, probably near the peak flow of the spring runoff season, and the creek was a full-blown torrent. After photographing some familiar rock formations below the bridge that crosses the creek, I decided to try a photograph from the upstream side of the bridge. In this direction, the creek is more or less half waterfall and half cascade as it plunges down a very steep and narrow section of the hillside. The whole scene was in deep shade and mist and spray filled the air.

I made a guess that a 135mm lens might give me a tight enough framing of the scene, so I briefly stepped away from the creek and the spray-filled air to switch lenses. Leaving everything else behind, I took the camera, tripod, and this single prime lens and walked to the wet side of the bridge. There was enough spray that I and my gear began to get wet pretty fast, so I worked quickly. I got everything in what I figured would be about the right position before I uncovered the lens, then quickly uncovered and finalized the composition and manually focused. I knew that I couldn’t really stay in this spray all that long so I spent a couple minutes bracketing a series of exposures as the mist surrounded me, hoping that water on the lens and in the air in front of the camera would not interfere with the shot.

The main decision was about shutter speed and with other decisions regarding aperture and so forth to follow on that. The idea was to use a slow enough shutter speed to allow the water to blur a bit, but not so slow as to turn it to formless mist. I managed to get to a 1/5 second exposure by shooting at f/20, an aperture a bit smaller than I would typically want to use, as apertures smaller than about f/16 can begin to introduce a bit too much diffraction blur. But in a shot like this one where mist is obscuring a great deal of the detail anyway, that seemed like a reasonable compromise that let me lengthen the shutter speed just a bit.

G Dan Mitchell Photography
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Photographs: Nature, Photographs: Northern California, Photographs: Sierra Nevada, Photographs: Yosemite

Boulders, Cascade Creek

July 4, 2011 G Dan Mitchell Leave a comment

Granite boulders deflect the turbulent flow of Cascade Creek as it descends to the Merced River, Yosemite National Park.

This photograph is another in my continuing study of the boulders and flowing water of Yosemite’s Cascade Creek. I made this photograph fairly early in the morning on the weekend when Tioga Pass opened this year. I arrived before the scheduled 8:00 a.m. opening of Tioga Pass Road and decided that it would be more interesting and useful to photograph this subject than to wait in line so that I could be on my way over the pass at exactly the moment the road opened, especially when the morning brings shaded, diffused light to this cascade.

As I repeatedly photograph this subject, I begin to know it much more thoroughly. Partly it is a matter of understanding the seasonal and even daily ebb and flow of water and light at this place, but it is also a process of becoming very familiar with smaller details of the scene. When I first photographed here this rock outcropping was something that I occasionally worked to minimize in some compositions, but it has since come to be an interesting subject on its own. It extends into the torrent, forcing the water to flow around (and partially over, in high water) before dropping steeply to the right, running into other rocks, and making a quick and turbulent left turn before heading over another drop. Because it sits in the middle of all of this wild water, it is often covered with water and this water reflects the light of the open sky beyond the shaded confines of this narrow canyon.

G Dan Mitchell Photography
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Photographer and visual opportunist. Daily photos since 2005, plus articles, reviews, news, and ideas.