These are the best Sigma macro lenses when you want razor-sharp 1:1 detail, smooth focus control, and flexible working distances for product, food, beauty, nature, and tabletop video—across mirrorless and DSLR systems—and here’s what to look for as you buy: prioritize true magnification (1:1 is baseline; 2:1 only if you routinely shoot tiny subjects), working distance (longer focal lengths keep lights and skittish insects comfortable), flat-field correction for edge-to-edge detail on packaging/coins/textiles, low longitudinal/transverse CA around specular highlights, internal focusing (for steady balance under diffusers) or a well-controlled extending design, a long and repeatable focus throw with a focus limiter for faster AF, weather sealing and gasketed mounts if you shoot outdoors, front threads for polarizers/ring lights/diopters, and stabilization strategy (lens OS on DSLR glass vs relying on IBIS on mirrorless); for video, favor declickable aperture (where available), quiet motors, minimal focus breathing, and close-focus that plays nicely with sliders and gimbals. The mirrorless hero is the Sigma 105mm f/2.8 DG DN Macro | Art (Sony E/L-Mount): 1:1 with internal focus, excellent contrast and CA control, weather sealing with customizable AFL button, focus limiter, and crisp rendering that doubles as a short-tele portrait lens—pair with IBIS for rock-steady handhelds. For maximum optical purity on small products and copy work, the Sigma 70mm f/2.8 DG Macro | Art (E/EF) is a benchmark sharpness lens with beautiful color and micro-contrast—AF is deliberate rather than blazing, but precision is superb for stacking and tabletop; its focal length is ideal for tight spaces and flat-lays. If you’re on DSLR Canon/Nikon and want stabilization in-lens, the Sigma 105mm f/2.8 EX DG OS HSM Macro remains a workhorse: 1:1, optical stabilization for handheld detail, a handy limiter, and neutral color that grades easily—great value on the used market. Need more working distance and buttery backgrounds outdoors? The Sigma 150mm f/2.8 EX DG OS HSM APO Macro adds OS, a tripod collar, and APO-leaning control of fringing for insects and skittish subjects; when you can find it, the Sigma 180mm f/2.8 APO Macro OS HSM delivers even longer reach and sumptuous compression for field macro and tight beauty shots. Legacy compact options like the Sigma 50mm f/2.8 EX DG Macro and 70mm f/2.8 EX DG Macro (older versions) remain budget-friendly choices for copy work and small studios—shorter working distance, but excellent flat-field detail. Practical buyer tips: pick ~100–105mm for the best all-round mix of working distance and background melt, 70mm when space is tight or you shoot flat-lays, and 150–180mm when insects are skittish or you want smoother separation; choose internal-focus designs when working under diffusers, grab a lens with a limiter to cut hunting, and lean on IBIS with the 105 DN (or lens OS on the 105/150/180 EX) for steadier handhelds; standardize filter sizes if you share a CPL or ring light; for stacking, favor lenses with long, repeatable manual throws and consider a focusing rail. Shooting tips: light from the sides to reveal texture, use a polarizer to tame label glare, start around f/5.6–f/8 for 3D subjects (stack when you need full depth), keep subject-to-background distance generous for smoother bokeh, enable peaking and magnification for precise manual hits, disable stabilization on a locked tripod, and meter for highlights to protect glossy surfaces. Whether you’re rendering gemstones at 1:1, filming silky product pours, or isolating pollinators at dawn, the best Sigma macro lenses combine clinical sharpness, dependable mechanics, and thoughtful ergonomics—so your close-ups are crisp, color-true, and easy to light and grade.