Tanga offers the Sigma 70-300mm f/4-5.6L APO DG Macro Telephoto Zoom Lens for Canon SLRs, model no. 508101, for $159.99 plus $4.99 for shipping. That's the lowest total price we could find by $25, although we saw it for $36 less in our December mention. Designed for full-frame digital SLRs, it has a minimum focus distance of 59.7". Deal ends February 18.