HDR Photographs taken from Idaho Highway 78, Owhyee County, departing Murphy, ID, driving towards Grandview, ID. August, 2013.
This HDR image was taken with a polarizer, facing NNW. Notice the color fall-off in the sky to the left (W). This is typical of a polarizer when facing directly East or West and especially when using a wide-angle lens you will almost always have fall-off on one edge or the other. Additionally auto-focus cameras must use circular polarizers, which are not as effective as traditional filters.
In the distance is the Snake River canyon. Click the image for a larger view.
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Two miles East, along the same highway, facing South. The Owhyee Mountains are in the distance. The dirt road you see is a ranch service road and is not the highway.
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Below are the five exposures used to assemble the HDR. The final HDR image is similar to the EV-0 exposure. I used HDR to take some of the contrast out of the picture and to give some color to the sky. A wide-angle was used to capture the foreground fence post and the background's vanishing point. Vignetting is caused by the polarizer filter stacked on top of a UV filter and is pronounced because of the wide-angle lens. I did not notice this while taking the photographs and had to crop the final image.
Both photos were taken mid-afternoon, with the sun directly overhead. This is not the best time to take a photograph. It was a fun challenge to see if the images could be saved.
For those of you not familiar with Idaho, the Southern half of the State is dry, high-desert with sage and cheat-grass. Owhyee County is a large, particularly desolate area, with 7,700 square miles, and a population of 11,000 souls. The county was named for 3 Hawaiian trappers, who in 1819, traveled in this region and disappeared. The anglicized name stuck. The famed Silver City ghost town can be found about 30 miles SW of Murphy, on an unimproved road.
Along the Snake River, within pumping distance, you will find alfalfa, some grains and dry-desert cattle grazing. Google-maps shows how important the Snake River is to the local economy. The red-x is approximately where the photographs were taken and the town of Grandview (population 440) is marked at the "A".
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