Sigma 24mm f/1.4 DG DN | Art - Sony E, Leica L Mount

The Sigma 24mm f/1.4 DG DN Art is a wide-angle prime specifically engineered for mirrorless systems. It is significantly more compact than its DSLR predecessor while maintaining high optical performance through two FLD and one SLD glass elements. Features include a manual aperture ring with de-click and lock switches, a rear filter holder, and a front filter thread. Its optical design is optimised for edge-to-edge sharpness, making it a versatile choice for landscape and street photography. Check the aperture ring for smooth rotation and ensure the 'Click' and 'Lock' switches function correctly. Examine the rear filter holder for any deformation or damage that might prevent gelatin filters from seating properly. SDS tests the focus-by-wire system for responsiveness and inspects the mount for signs of excessive wear. We also verify that the lens barrel is free from impact damage that could affect weather sealing.