Sigma 50mm f/1.4 Art lens for Canon EF mount. Optically sharp and fully functional. I bought this on TM last year, and there is some fungus behind the front element, off to the side — it doesn’t appear to affect image quality in use. Exterior and lens hood shows signs of wear - see pics. Still delivers the beautiful rendering, fast autofocus, and creamy bokeh the Art series is known for. Great value for a working photographer or someone on a budget still wanting top notch image quality. These Sigma lenses work great, especially adapted to Canon mirrorless cameras with dual pixel auto focus. I've owned all of these below, so certainly vouch for their image and build quality. Sigma 24mm f1.4 DG hsm Sigma 28mm f1.4 DG hsm Sigma 35mm f1.4 DG hsm Sigma 40mm f1.4 DG hsm Sigma 50mm f1.4 DG hsm Sigma 85mm f1.4 DG hsm Sigma 105mm f1.4 DG hsm Sigma 135mm f1.8 DG hsm Have upgraded bought a RF 50mm 1.2, so no longer need this one anymore.