Colorado River and Canyon Wall
A small cottonwood tree clings to life against a canyon wall as the Colorado River races by. Sony α900, Sony SAL 70-300mm lens at 180mm, f/11 at 3 seconds.
This image of the Colorado River was shot above Lee’s Ferry in Glen Canyon National Recreation Area. I was attracted to the small cottonwood tree clinging to life against the far canyon wall. To get the river in flowing motion I used a Heliopan Circular Polarizer combined with a Singh-Ray 4-stop neutral density filter. This combination allowed me to slow down the shutter speed and balance the light and exposure.
Robert H. Clark Photography Blog 