Sigma Super Wide Angle Zoom 10-20mm f/4-5.6 EX ...

Buy it:
$539.00 at Buydig.com
Sigma 10-20mm f/4-5.6 EX DC HSM Autofocus Lens ...

The Sigma 10-20mm f/4-5.6 EX DC HSM lens offers an ultra-wide zoom solution to digital cameras an... Buy it:
$569.00 at B&H Photo-Video-Pro Audio
Sigma 10-20mm f/4-5.6 EX DC Autofocus Lens for ...

The Sigma 10-20mm f/4-5.6 EX DC lens offers an ultra-wide zoom solution to digital cameras and wa... Buy it:
$569.00 at B&H Photo-Video-Pro Audio