Originally posted by angkymac Looking east across the Willamette valley to the foothills of the Cascades (Linn County).
Light was coming from cloud reflections.
Grass was an even green to my eye; I notice in this image a definite change in green and brilliance from center outward right and left (but not vertically after the bottom fourth).
I wonder if the lens tends to vignette. I cropped off the lower third of the image, so we see from about the center to the top.
Or perhaps the change in luminosity in the grass comes from refraction through the very dense water droplets (heavy dew) on the grass.
Angky.
I agree, that is a very picturesque landscape! I believe that the composition that you chose, in three sections of approximately the same width (grass, hills and skye) is particularly effective. I can't help about your question concerning the uneven color of the grass, but it seems to be too much "local" (I mean, the brighter part is restricted to the center of the grass area) to be due to lens vignetting, so perhaps I would lean more to your other explanation.