Archive for January 16th, 2010

Bridge and Ice on the Potomac River

A thin sheet of ice extends out into the quiet flow of the Potomac River. Shot with a Sony a900 and a Zeiss 24-70mm lens at 50mm. Image exposed at ISO 100 at f11 for 1/15 of a second.

Here is another image from this mornings shoot. This large sheet of ice extended out from the shoreline and broke up the bridges reflection in the river. To get this shot I actually waded out into the river about three to four feet so I could get a good angle on the ice edge. Its nice to have waders for this kind of thing. The image was processed in more monochromatic tones to play on the cold, stark morning.

Bob

Ice and Tree Reflection

Image 1. Initial RAW file before Photoshop work.

Image 2. Optimized Image after RAW processing and Photoshop.

We have had quite a bit of cold weather in West Virginia so I took the opportunity to explore the edges of the Potomac River in search of ice. Due to a bit of a warming trend most of the ice had dissipated but several areas were still intact. In this image the stillness of the river allowed the trees to reflect against a sheet of ice. It was a wonderful study in contrast.

The image was exposed with a Heliopan Circular Warming Polarizer. I stopped the polarizer down just a bit to allow some of the river bottom to show through. This gave me just a bit of warm color to contrast with the blue of the ice and river. Lens focus was directed on the sheet of ice and the trees were allowed to blur slightly.

Image 1 shows the file after RAW conversion in Adobe Lightroom. The white balance was adjusted and initial capture sharpening was applied.

Image 2 shows the file after work in Photoshop. The intent was to process the image the way I initially saw it which required applying a series of adjustment layer curves to separate the sheet of ice from the river. The river adjustment also equalized the contrast in the river allowing the ice to stand out.

I have several more images from this day which I will put up in a later post.

Bob

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