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Side Channel at Great Falls

Side Channel at Great Falls
Photo Information
Copyright: Alan Kolnik (Alan_Kolnik) Gold Star Critiquer/Silver Workshop Editor/Gold Note Writer [C: 236 W: 38 N: 343] (2616)
Genre: Landscapes
Medium: Color
Date Taken: 2007-07-22
Categories: River
Camera: Nikon D70, Sigma 10-20mm / F 4-5,6 DC EX HSM
Exposure: f/16, 1/50 seconds
More Photo Info: [view]
Photo Version: Original Version
Date Submitted: 2007-07-22 14:53
Viewed: 3823
Favorites: 1 [view]
Points: 5
[Note Guidelines] Photographer's Note
This is a side channel at Great Falls, Potomac, Maryland. The falls are not navigable, so a canal runs alongside the river (the C&O - i.e. Chesapeake and Ohio - canal). Various man-made efforts like you see exist, and I believe this was an attempt to provide a way for fish to reach the upper reaches of the river. Till recently, it was known for bass fishing, but a Chinese fish known as a snakehead was released by accident or to get rid of it in a river in the area, and this has spread to the Potomac, where it is apparantly crowding out the bass and other varieties by eating th fish fry.

The Potomac in this area is very dangerous for swimming in due to the currents, rocks, and rapid passage of the river through the falls. See Rapids at Great Falls for a view of the actual falls.

This is a composite of two sequential shots - one exposed for the sky, and the other for the river, then merged by eliminating the foreground in one and the sky in the other. The contrast was too great for one image to manage. It was taken with my new Sigma 10-20 mm lens, and unfortunately I do not have a graded filter for its massive 77mm aperture!!

RAW, ISO 200

livios, maaciejka has marked this note useful
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Critiques [Translate]

good note good job
sometimes i don't know why this kind of picture don't have point

aleks ;:)
see you soon for other picture
( but just one point because it's a workshop picture)

  • Great 
  • livios Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 2150 W: 319 N: 4263] (16942)
  • [2007-07-28 13:47]

Alan, I like composition a lot.

Very nice colors and pov.

Great clouds pattern.

Hi again,
rally great photo. Excellent sharpness, composition and ... everything,
thanks for sharing,

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