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BuyDig via eBay has the Sigma 18-250mm F3.5-6.3 DC Macro OS HSM for Canon EF for $279.99. BuyDig is an authorized Sigma retailer. This is the absolute cheapest we’ve seen it ever from authorized dealers! This is a very versatile all-round lens with an effective 13.9x zoom and 3-stop image stabilization, which makes a good single-lens travel solution. Compare with $399 currently at other authorized Sigma retailers.
This is an eBay daily deal and is expected to end in 24 hours or when sold out.