I got my latest toy in the mail yesterday...the newly released Sigma 12-24 II lens... and this thing is way wiiiiide on my 5d mkII! I returned to the cowpies formation east of town to put it through its paces. I lucked out with another magnificent morning (we usually wake up to clear skies in Sedona) and was able to put the reflection pools from recent storms to good use. I'm gonna have a lot of fun with this lens!