The Tamron SP AF 180 mm f/ 3.5 Di LD IF Macro is a high quality full-format telephoto macro lens. It is indispensable when a greater working distance is required for shooting too scary subjects with a high magnification ratio. With rather slow autofocus it is not equipped with AF range limiter. Featuring Filter Effect Control (FEC) ring for rotating a polarizing filter with attached hood at the necessary angle. The FEC ring rotates the filter and the hood. AF/MF one-touch control allows switching from autofocus to manual focusing by moving the focus ring back to the camera. This causes the focus ring to disclose the blue ring indicating that AF is off. When switching, focusing may slightly shift.