Overview

The Sigma AF 1000mm f/8 APO is an enormous, heavy lens that demands a sturdy tripod and head for stability. Its f/8 aperture limits use to bright conditions and requires a camera body capable of autofocus at f/8, though AF may be unreliable and manual focus is often preferred. Image quality is generally soft, especially at close distances and long range due to haze, with low contrast and minimal bokeh. It is best suited for collectors or those needing extreme reach in controlled conditions, but modern super-telephoto zooms offer better sharpness and versatility.