Budget Sigma 70-300mm DG, the cheapest possible 300mm telephoto reach with full-frame coverage.
The Sigma 70-300mm f/4-5.6 DG is a budget telephoto zoom with full-frame coverage for the most affordable 300mm reach available. The DG designation confirms full-frame compatibility, and the mount is unspecified in this listing.
The 70-300mm range covers portrait through long telephoto at the most affordable pricing. The full-frame DG coverage works on both APS-C and full-frame bodies, providing basic but functional telephoto reach at essentially zero cost.
Build quality is budget Sigma with functional construction. The lens provides the most affordable 300mm reach for general photography at the lowest possible investment in telephoto capability.
The Sigma 70-300mm DG offers the cheapest 300mm reach available on the used market. The basic specification provides functional telephoto capability for casual sports, wildlife, and event photography.