.d_spin_9

gallery

Someone got pretty close to the edge here it looks like. Sigma 10-20 with the new hoya pro 1 polarizer. they work very very nicely, the only problem, which is slightly visible here ( i fixed it a little) is that at 10mm (102 degree view) the circle of sky at right angles with the sun gets polarized almost twice as effectively as the sky around it.... so you can see a bit of a darker spot