Tokina AT-X 100mm f/2.8 Pro Macro - unknown Mount

The Tokina AT-X 100mm f/2.8 Pro Macro is a dedicated macro lens providing a 1:1 reproduction ratio at its minimum focus distance of 30cm. Designed for full-frame cameras, it is well-regarded for its sharpness and flat-field optics, making it effective for both clinical macro work and portraiture. It features a focus limit switch to reduce hunting during general use and the characteristic Tokina push-pull focus clutch mechanism. Inspect used copies for the condition of the deeply recessed front element; while well-protected, it should be free from scratches. Ensure the focus limit switch clicks firmly into place and that the autofocus motor operates smoothly, noting that this model uses a screw-drive system on some mounts. SDS checks for aperture blade oil and ensures the manual focus ring engages positively across the full travel.