Sigma 10-18mm f/2.8 DC DN | Contemporary - unknown Mount

The Sigma 10-18mm f/2.8 DC DN Contemporary is an ultra-wide-angle zoom designed specifically for APS-C mirrorless cameras. It is currently one of the smallest and lightest f/2.8 zooms in its class, making it an excellent choice for gimbal work, travel, and landscape photography. Despite its small size, it maintains a constant f/2.8 aperture throughout the zoom range, aiding in low-light performance. When purchasing used, verify the smoothness of the zoom mechanism; it should not feel tight or uneven at either end of the range. SDS checks the internal optics for alignment, as compact zooms can be sensitive to knocks. The electronic contacts and mount should be free from wear. Ensure the lens hood, which uses a push-on design rather than a traditional bayonet, attaches securely and does not show signs of cracking.