Additional Details:
Lens construction: 22 elements in 16 groups, with 1 FLD and 4 SLDs
Compatible with high-speed autofocus
Compatible with lens-based optical correction * Only on camera models that support this functionality. Scope of correction varies depending on camera model.
Image stabilization (OS)
AFL button
Focus limiter
Zoom lock switch * Fixes the zoom ring at the widest end, preventing it from rotating and causing the lens barrel to extend under its own weight during transportation.
Dust- and splash-proof bayonet
Compatible with newly designed SIGMA TELE CONVERTER TC-1411/TC-2011 (sold separately / for L-Mount only) * Functions as a 140-560mm F7-9 AF ultra-telephoto lens with the SIGMA TELE CONVERTER TC-1411, and as a 200-800mm F10-12.6 AF ultra-telephoto lens with the SIGMA TELE CONVERTER TC-2011. * Autofocus mode varies depending on camera body.
Compatible with TRIPOD SOCKET TS-111 (sold separately) * Compatible with Arca-Swiss clamps. * Specifications same as the tripod socket for the 105mm F1.4 DG HSM | Art lens. * The socket not compatible with the 100-400mm F5-6.3 DG OS HSM | Contemporary lens for SLR cameras.
Compatible with newly designed SIGMA USB DOCK UD-11 (sold separately / for L-Mount only)
Designed to minimize flare and ghosting
Every single lens undergoes SIGMA's proprietary MTF measuring system "A1"
9-blade rounded diaphragm
High-precision, durable brass bayonet mount
"Made in Japan" craftsmanship