Sigma 90mm f/2.8 DG DN | Contemporary - Sony E, Leica L Mount

This short telephoto prime is part of the I-series, providing a compact 90mm focal length ideal for portraits and close-up details. It features a minimum focusing distance of 50cm and an all-metal exterior. Despite its small size, it maintains a high standard of optical clarity with minimal chromatic aberration, making it a discrete choice for travel and street portraiture. Used buyers should check the magnetic lens cap (if present) for fit and the aperture ring for consistent tension. SDS inspects the glass for fungal growth and verifies the autofocus motor is silent and responsive. The exterior finish is durable, but look for wear on the knurled rings. Ensure the mount contact pins are clean and the lens communicates correctly with the camera body.