BuyDig offers the Sigma 70-300mm f/4-5.6L APO DG Macro Telephoto Zoom Lens for Canon SLRs, model no. 508101, for $199. Coupon code “DIG50” drops it to $149. With free shipping, that’s $16 under our mention from three days ago and the lowest total price we could find by $50, although we saw it for $20 less in December. Designed for full-frame digital SLRs, it has a minimum focus distance of 59.7″.

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