Sigma's compact super-telephoto zoom — 100-400mm Contemporary line with OS and lightweight design.
The Sigma 100-400mm f/5-6.3 DG OS HSM Contemporary was released approximately 2017 as the Contemporary-tier telephoto zoom for Nikon F-mount full-frame. Twenty-one elements in 15 groups including SLD elements. Nine rounded aperture blades. 67mm filter thread. At 1,160g. 1.60m MFD. OS. HSM motor.
Twenty-one elements in 15 groups (4 SLD elements; TSC Thermally Stable Composite construction). Nine rounded aperture blades. The 67mm filter thread. At 1,160g the lens is moderate for the zoom range. Minimum focus distance of 1.60m (1:3.8 magnification at 400mm). OS optical stabilisation. HSM motor. Variable aperture from f/5 at 100mm to f/6.3 at 400mm. Full-frame coverage (DG). Nikon F mount.
The Contemporary designation indicates Sigma's mid-tier build versus the Sports version: the Contemporary is lighter (1,160g vs Sports 1,930g) with standard moisture-resistant sealing at the mount, trading the Sports' more extensive weather sealing for reduced weight. The 67mm filter thread is shared with many Sigma Contemporary lenses.
On the used market the Sigma 100-400mm f/5-6.3 DG OS HSM Contemporary is affordable as a Nikon F telephoto zoom. Condition checks: OS engagement, HSM AF response, 67mm front element for marks, zoom ring smoothness. Compatible with Nikon F-mount FX and DX bodies.