{"product_id":"sigma-100-400mm-f-5-6-3-dg-dn-os-contemporary-lens-fuji-x-1","title":"Sigma 100-400mm f\/5-6.3 DG DN OS Contemporary Lens (Fuji X)","description":"\u003cp data-start=\"228\" data-end=\"628\"\u003eThe Sigma 100‑400mm f\/5‑6.3 DG DN OS Contemporary is an \u003cstrong data-start=\"299\" data-end=\"328\"\u003eultra‑telephoto zoom lens\u003c\/strong\u003e built to deliver long‑reach performance in a \u003cstrong data-start=\"374\" data-end=\"417\"\u003erelatively compact, lightweight package\u003c\/strong\u003e for mirrorless cameras with the Fuji X mount. It’s part of Sigma’s \u003cem data-start=\"485\" data-end=\"499\"\u003eContemporary\u003c\/em\u003e line, which focuses on balancing optical quality, manageable size, and everyday usability. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"630\" data-end=\"667\"\u003e\u003cstrong data-start=\"630\" data-end=\"665\"\u003eKey Specifications and Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"668\" data-end=\"2908\"\u003e\n\u003cli data-section-id=\"1ortjec\" data-start=\"668\" data-end=\"919\"\u003e\n\u003cstrong data-start=\"670\" data-end=\"687\"\u003eFocal Length:\u003c\/strong\u003e 100–400 mm. On Fujifilm APS‑C bodies this effectively covers roughly 150–600 mm equivalent focal length in full‑frame terms, making it excellent for distant subjects like wildlife and sports. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"2nynkp\" data-start=\"920\" data-end=\"1132\"\u003e\n\u003cstrong data-start=\"922\" data-end=\"943\"\u003eMaximum Aperture:\u003c\/strong\u003e Variable f\/5 at 100 mm to f\/6.3 at 400 mm — common for long telephoto zooms to keep the size and weight reasonable while still usable in good light. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1m62ao7\" data-start=\"1133\" data-end=\"1232\"\u003e\n\u003cstrong data-start=\"1135\" data-end=\"1156\"\u003eMinimum Aperture:\u003c\/strong\u003e f\/22–29 depending on zoom position. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"b80nxd\" data-start=\"1233\" data-end=\"1453\"\u003e\n\u003cstrong data-start=\"1235\" data-end=\"1257\"\u003eLens Construction:\u003c\/strong\u003e 22 optical elements in 16 groups, including one FLD and four SLD elements to reduce chromatic aberration and maintain good sharpness across the zoom range. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1jwxobc\" data-start=\"1454\" data-end=\"1677\"\u003e\n\u003cstrong data-start=\"1456\" data-end=\"1477\"\u003eAutofocus System:\u003c\/strong\u003e Fast, quiet \u003cstrong data-start=\"1490\" data-end=\"1514\"\u003estepping motor (STM)\u003c\/strong\u003e for autofocus that works well for both stills and video; internal focusing maintains the lens length during focus changes. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"19d0ca8\" data-start=\"1678\" data-end=\"1897\"\u003e\n\u003cstrong data-start=\"1680\" data-end=\"1706\"\u003eOptical Stabilization:\u003c\/strong\u003e Built‑in \u003cstrong data-start=\"1716\" data-end=\"1743\"\u003eOS (Optical Stabilizer)\u003c\/strong\u003e rated for up to around \u003cstrong data-start=\"1767\" data-end=\"1781\"\u003efour stops\u003c\/strong\u003e of shake reduction that helps with handheld shooting at long focal lengths. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1tfry08\" data-start=\"1898\" data-end=\"2120\"\u003e\n\u003cstrong data-start=\"1900\" data-end=\"1930\"\u003eMinimum Focusing Distance:\u003c\/strong\u003e About \u003cstrong data-start=\"1937\" data-end=\"1980\"\u003e1.12 m (wide end) to 1.60 m (telephoto)\u003c\/strong\u003e, with a \u003cstrong data-start=\"1989\" data-end=\"2029\"\u003emaximum magnification of about 1:4.1\u003c\/strong\u003e at 400 mm for close‑up detail on distant subjects. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"xzwpxj\" data-start=\"2121\" data-end=\"2247\"\u003e\n\u003cstrong data-start=\"2123\" data-end=\"2137\"\u003eDiaphragm:\u003c\/strong\u003e Rounded \u003cstrong data-start=\"2146\" data-end=\"2167\"\u003e9‑blade diaphragm\u003c\/strong\u003e for smoother background blur (bokeh). \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"p3u8ub\" data-start=\"2248\" data-end=\"2419\"\u003e\n\u003cstrong data-start=\"2250\" data-end=\"2266\"\u003eFilter Size:\u003c\/strong\u003e φ67 mm – same thread as many other Sigma Contemporary lenses, which helps if you already own matching filters. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"9luieo\" data-start=\"2420\" data-end=\"2603\"\u003e\n\u003cstrong data-start=\"2422\" data-end=\"2449\"\u003ePhysical Size \u0026amp; Weight:\u003c\/strong\u003e Approximately \u003cstrong data-start=\"2464\" data-end=\"2500\"\u003e86 mm diameter × 199.5 mm length\u003c\/strong\u003e, with weight around \u003cstrong data-start=\"2521\" data-end=\"2532\"\u003e1,135 g\u003c\/strong\u003e (protective cover included). \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1vzzb6k\" data-start=\"2604\" data-end=\"2758\"\u003e\n\u003cstrong data-start=\"2606\" data-end=\"2622\"\u003eMount Build:\u003c\/strong\u003e Dust‑ and splash‑resistant mount sealing for better reliability in varied outdoor conditions. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"ehumcs\" data-start=\"2759\" data-end=\"2908\"\u003e\n\u003cstrong data-start=\"2761\" data-end=\"2786\"\u003eSupplied Accessories:\u003c\/strong\u003e Lens hood (LH770‑05), protective cover (PT‑31), front cap, and rear cap included. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2910\" data-end=\"3408\"\u003e\u003cstrong data-start=\"2910\" data-end=\"2950\"\u003eOptical and Handling Characteristics\u003c\/strong\u003e\u003cbr data-start=\"2950\" data-end=\"2953\"\u003eThis lens’s optical design maintains good image quality across its zoom range, with special glass elements controlling chromatic aberrations and delivering strong contrast and clarity. The optical stabilizer helps a lot when shooting handheld at long focal lengths where camera shake is most noticeable. Focus and zoom rings are smooth, and the lens is designed for comfortable handling despite its telephoto reach. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"3410\" data-end=\"3487\"\u003e\u003cstrong data-start=\"3410\" data-end=\"3436\"\u003ePractical Applications\u003c\/strong\u003e\u003cbr data-start=\"3436\" data-end=\"3439\"\u003eThe 100–400mm range makes this lens ideal for:\u003c\/p\u003e\n\u003cul data-start=\"3488\" data-end=\"3674\"\u003e\n\u003cli data-section-id=\"g5x0yo\" data-start=\"3488\" data-end=\"3543\"\u003eWildlife photography (birds, animals at a distance)\u003c\/li\u003e\n\u003cli data-section-id=\"1brnu8b\" data-start=\"3544\" data-end=\"3574\"\u003eSports and action shooting\u003c\/li\u003e\n\u003cli data-section-id=\"1y7xopw\" data-start=\"3575\" data-end=\"3616\"\u003eOutdoor events and nature photography\u003c\/li\u003e\n\u003cli data-section-id=\"1el82x5\" data-start=\"3617\" data-end=\"3674\"\u003eOccasional portrait compression at longer focal lengths\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"3676\" data-end=\"3686\"\u003e\u003cstrong data-start=\"3676\" data-end=\"3684\"\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"3687\" data-end=\"4149\"\u003e\n\u003cli data-section-id=\"8e3c70\" data-start=\"3687\" data-end=\"3800\"\u003eExcellent reach with manageable size and weight for a telephoto zoom. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"haqrv4\" data-start=\"3801\" data-end=\"3894\"\u003eEffective image stabilization for handheld shots. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1t7o00j\" data-start=\"3895\" data-end=\"3970\"\u003eQuiet and responsive autofocus. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"19lwxup\" data-start=\"3971\" data-end=\"4069\"\u003eSharp image quality throughout most of the zoom range. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"h2jmcz\" data-start=\"4070\" data-end=\"4149\"\u003eWeather‑resistant mount construction. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"4151\" data-end=\"4178\"\u003e\u003cstrong data-start=\"4151\" data-end=\"4176\"\u003eCons \/ Considerations\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"4179\" data-end=\"4482\"\u003e\n\u003cli data-section-id=\"1y4oyug\" data-start=\"4179\" data-end=\"4346\"\u003eRelatively slow maximum aperture (f\/5‑6.3) means it performs best in good light; low‑light shooting may require higher ISO. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"17d96dk\" data-start=\"4347\" data-end=\"4482\"\u003eLong focal lengths on APS‑C bodies demand steady technique or stabilization for best results.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Best Pricer","offers":[{"title":"Default Title","offer_id":54161189470537,"sku":null,"price":612.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/6849\/0313\/files\/hh_32.webp?v=1775643449","url":"https:\/\/www.bestpricer.co.uk\/products\/sigma-100-400mm-f-5-6-3-dg-dn-os-contemporary-lens-fuji-x-1","provider":"Best Pricer","version":"1.0","type":"link"}