It's been a while since I splurged on a new lens like this one. It's the Sigma 150-500mm super telephoto and I have to admit, I'm very impressed. The color and sharpness are more than what I expected in a lens of this price range.
I bought it mainly to cover sports with my 1D-X but have managed to grab some pretty incredible shots before any spring seasons kick in. I haven't noticed any significant drop off in image quality from 150 to 500, but I still need to put it through the ringer to see what it can really do. So until I get a chance to head out and shoot anything of real importance, enjoy these lovely shots of the man in the moon.