Sigma 55-200mm f/4-5.6 DC - Unknown Mount

The Sigma 55-200mm f/4-5.6 DC is a compact telephoto zoom lens engineered for APS-C format DSLRs. It serves as an ideal companion to a standard kit lens, offering a focal range equivalent to roughly 82-300mm. Its lightweight design makes it easy to handle for handheld sports or wildlife photography in good lighting conditions. The lens incorporates Special Low Dispersion (SLD) glass to help manage chromatic aberrations. Used examples should be inspected for 'zoom creep', though the lens is generally light enough to avoid this. SDS checks the internal optical elements for fungal growth or significant dust accumulation. The autofocus performance is tested to ensure it locks onto subjects reliably. We also verify that the electronic communication with the camera body is consistent and that the aperture mechanism operates correctly.