Tunnel in Mount Ranier National Park, WA USA

ranier_tunnel

Mount Ranier National Park in Washington state is another of our countries natural jewels. Established in 1899, it has the ‘feel’ of an old park. At over 200 thousand acres in size, and Mount Ranier’s peak of over 14 thousand feet, it makes for a large variety of stunning scenery.

Driving the southern section of the park, you will pass thru several tunnels bored thru solid rock. This photograph is taken from inside one of those tunnels, looking back outside to the east. (Note: Please be very careful if you decide to try and take a photograph like this. With running water and wind noise, it can be hard to hear traffic approaching you). This image was taken early in the morning, hoping to avoid traffic intrusion as much as possible.

Notice that you can see both the rock inside the tunnel, which is relatively dark compared to the outside light level, and the more brightly lit trees outside the tunnel entrance. In a traditional photograph, only one or the other of these two areas would be properly exposed and visible, and the other would either be burned out by bright light, or dropped out in dark shadow.

This photograph exhibits a wider range of light level visibility because it is an HDR processed image. HDR stands for High Dynamic Range. The image is a combination of multiple exposures, each one exposed for a different range of light level. The multiple exposures are then combined into a single HDR digital negative, and the resulting HDR image is digitally processed from that hybrid negative. The image has all the light levels adjusted such that they can be seen even on the limited range provided by your computer screen. This more closely simulates the way your eye naturally views the same scene.

I hope you enjoy the photograph, and I want to take this opportunity to wish all of you a very Happy Holiday Season!

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