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Roots Tangled In The Forty's Ravine - HDR/Tone-Mapped

Because of the water flow down the creek named 'The Forty' as it runs down the Niagara Escarpment on its way to Lake Ontario about 1.5 KM (1 mile) North of this spot, the soft sedimentary rock and soils have eroded into a steep-walled ravine. Over time trees have found spots to cling to but it is a precarious existence since any storm or spring run-off in particular, causes significant erosion. The result is some trees partly tumble down and others start growing in the open spot left after the fall. Here you see a typical jumble of tree roots that forms in the ravine, beside the creek. - JW


This is a single image HDR, hence it is Tone Mapped and not strictly an HDR. The original image was taken using a Nikon D500 fitted with a 55-200mm VR kit lense at 200mm, f/5.6, 1/250 sec, ISO400. HDR processing was done in Luminance/Qtpfsgui with settings as shown below. Additional PP in GIMP consisted of: slight curves adjust, slight saturation increase, colour balance to remove blue cast, sharpen, add border and scale to 1024 wide for posting.





Qtpfsgui 1.9.3 tonemapping parameters:

Operator: Mantiuk


Contrast Mapping factor: 0.1

Saturation Factor: 1.2

Detail Factor: 3


PreGamma: 1


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Uploaded on February 17, 2011