Sigma's 150mm f/2.8 macro — APO-corrected with 1:1 magnification and HSM for long working distance.
The Sigma 150mm f/2.8 EX APO DG Macro HSM is a long macro prime providing true 1:1 magnification at 150mm focal length. The extended working distance at macro makes it easier to photograph insects and small wildlife without disturbing them.
Optically very good — sharp at macro distances with APO correction for excellent chromatic aberration control. The 150mm provides approximately 38cm of working distance at 1:1 — more than 100-105mm macros. HSM motor for fast, quiet AF. f/2.8 also good for portraits.
Available for multiple DSLR mounts. 72mm filter thread. Approximately 895g — heavy. No image stabilisation. Full-frame coverage. Tripod collar included. EX professional build quality. Minimum focus distance 38cm at 1:1.
Available used at mid-range prices. The 180mm f/2.8 OS version added stabilisation and faster aperture. The 150mm without OS is cheaper but less practical handheld. For macro photographers wanting long working distance at a more affordable price than the 180mm version.