One of my "big boyzzz" lenses. Very creative and very strong optics. Beautiful finish....

very nice built; fantastic optics - very sharp and beautifull colours

a bit expensive; corner-cromatic-aberration

Sigma 10mm f/2.8 EX DC Fisheye HSM review by billytompkins

At 2.8, 3.5, 5.6--lens goes soft--especially at 2.8--which is disappointing since I shoot live music that is dark most of the times. At F8--its great, but F8 is the exception not the norm of my shooting. Too bad. I had the first lens glass fall out and Sigma replaced right away.

at F8 or less--very sharp

at 2.8---focus is off