This was taken Wednesday, when the sky was overcast. On ribbet.com, I desaturated it a bit, probably fiddled with exposure (I can't remember), and increased the "clarity" setting. That appears under "sharp" -- I can see it produces a different effect than the regular sharpness slider, but I don't know what exactly is being adjusted differently. I took another picture today (the 13th) and am posting it in my Alternates album: http://365project.org/mcsiegle/alternates/2013-09-11
