Sigma 135-400mm f/4.5-5.6 APO DG Aspherical AF ...

The Sigma 135-400mm f/4.5-5.6 APO DG Aspherical is a zoom lens that covers the most frequently us... Buy it:
$549.00 at B&H Photo-Video-Pro Audio
Sigma Zoom Telephoto 135-400mm f/4.5-5.6 APO DG...

This compact ultra-telephoto zoom lens is optimized for digital SLR cameras. It is ideal for spor... Buy it:
$509.95 at Sigma 4 Less
Sigma Zoom Telephoto 135-400mm f/4.5-5.6 APO DG...

This compact ultra-telephoto zoom lens is optimized for digital SLR cameras. It is ideal for spor... Buy it:
$529.95 at Sigma 4 Less