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This photo accompanies Figure 47.—Iron concentration with a diffuse boundary. [Field Indicators of Hydric Soils in the United States].
Inset: An iron concentration with a diffuse boundary exhibited by bright colors in the center of the concentration and a lighter color away from the center. The descriptive term "diffuse" is used to describe redoximorphic features that grade gradually from one color to another. The color grade is commonly 2 mm or more wide.
Soil Profile: This soil qualifies for indicator A11.—Depleted Below Dark Surface and S5.—Sandy Redox.
Note: The term "dark surface" is used with many indicators. Each indicator should be reviewed for a specific definition. Color requirements for a mollic or umbric epipedon most often does not meet the specific requirements of a "dark surface" indicator. These diagnostic surface layers used with Soil Taxonomy require a moist color with value or 3 or less and chroma of 3 or less.
"Dark surface" as used with the field indicators commonly requires a value of 3 or less and a chroma of 1 or less (or in some indicators 2 or less with increasing redox features).
This soil is in the Osier soil series (Typic Psammaquents). The Osier series consists of very deep, poorly drained, rapidly permeable soils formed in sandy alluvium.
Landscape: Osier soils are on flood plains (wooded area in photo background) or low stream terraces (photo foreground) of coastal plain river valley systems. They formed in recent sandy alluvium. They are subject to frequent or occasional flooding for brief to very long periods. They are classified as Typic Psammaquents. Most areas of Osier soil are in forest. The vegetation consists primarily of sweetgum, blackgum, water oak, red maple, swamp holly, bay, slash pine, and longleaf pine. The understory vegetation is mostly briars, vine, canes, myrtle, and gallberry.
Oslo's parliament building. I found myself in Oslo for the day on Monday this week. No time to muck around - first flight in, work, meeting, train, last flight out.
This was a snapshot taken as we hurried past on our way to the train station for the airport express train.
A light diffusing box I made - this is the front of it. It is simply a cardboard box lined with tin foil with paper taped to the front.
An example of a "product" shot taken using the diffuser and the waning overcast light from our kitchen window. The white background is a roll of "Foamie" material.
Entrevista no Digiforum:
www.digiforum.com.br/viewtopic.php?t=78078
BUCCI - 50mm Quantaray Macro Tech 10 MX AF + Sistema de Flash D.I.Y FLASH DIFFUSER
This photo represents diffuse lighting because it isn't obvious where the contrast of shadows is coming from. the light is everywhere lightly on the picture.
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The clouds were moving quickly that day and I had to try to keep up with them. I played with shadows/highlights on this one to give it the effect that I saw when taking it.