Pentax SMC DA* 300mm F4 ED[IF] SDM Review

The Pentax SMC DA* 300mm F4 ED[IF] SDM ($1,099.95) is a premium telephoto lens, compatible with APS-C cameras from Pentax. It’s an older model, but one that may still hold some appeal to photographers stepping up to the K-3 Mark III. As part of the premium DA series it’s built to high standards, with weather protection and a metal barrel.
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