{"product_id":"sigma-17-40mm-f-1-8-dc-art-lens-canon-rf","title":"Sigma 17-40mm f\/1.8 DC Art Lens (Canon RF)","description":"\u003cp data-start=\"194\" data-end=\"417\"\u003e\u003cstrong data-start=\"194\" data-end=\"211\"\u003eItem Includes\u003c\/strong\u003e\u003cbr data-start=\"211\" data-end=\"214\"\u003e• Sigma 17-40mm f\/1.8 DC Art Lens (Canon RF)\u003cbr data-start=\"258\" data-end=\"261\"\u003e• Sigma LCF-67 IV 67mm Front Lens Cap\u003cbr data-start=\"298\" data-end=\"301\"\u003e• Sigma LCR III Rear Lens Cap (Canon RF)\u003cbr data-start=\"341\" data-end=\"344\"\u003e• Lens Hood\u003cbr data-start=\"355\" data-end=\"358\"\u003e• Carrying Pouch\u003cbr data-start=\"374\" data-end=\"377\"\u003e• Limited 4-Year Manufacturer Warranty\u003c\/p\u003e\n\u003cp data-start=\"419\" data-end=\"832\"\u003e\u003cstrong data-start=\"419\" data-end=\"431\"\u003eOverview\u003c\/strong\u003e\u003cbr data-start=\"431\" data-end=\"434\"\u003eThe \u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eSigma 17-40mm f\/1.8 DC Art Lens Canon RF\u003c\/span\u003e\u003c\/span\u003e is a bright, wide-to-normal zoom lens for APS-C Canon RF-Mount mirrorless cameras. Its constant f\/1.8 aperture delivers prime-like sharpness and excellent low-light performance throughout the zoom range. Compact and lightweight, it works perfectly for both photography and video, offering smooth bokeh, minimal focus breathing, and fast, quiet autofocus.\u003c\/p\u003e\n\u003cp data-start=\"834\" data-end=\"1789\"\u003e\u003cstrong data-start=\"834\" data-end=\"846\"\u003eFeatures\u003c\/strong\u003e\u003cbr data-start=\"846\" data-end=\"849\"\u003e• 17-40mm focal range (35mm equivalent: 25.5-60mm) covers wide-angle to normal perspectives\u003cbr data-start=\"940\" data-end=\"943\"\u003e• Constant f\/1.8 aperture provides shallow depth of field and strong low-light capability\u003cbr data-start=\"1032\" data-end=\"1035\"\u003e• 17 elements in 11 groups with four aspherical and four SLD elements reduce flare and optical aberrations\u003cbr data-start=\"1141\" data-end=\"1144\"\u003e• 11-blade rounded diaphragm produces smooth bokeh and clear subject separation\u003cbr data-start=\"1223\" data-end=\"1226\"\u003e• Minimum focus distance of 11\" (28 cm) and maximum magnification of 0.21x (1:4.8)\u003cbr data-start=\"1308\" data-end=\"1311\"\u003e• Internal zoom design maintains lens length during zooming\u003cbr data-start=\"1370\" data-end=\"1373\"\u003e• Reduced focus breathing supports smooth video recording\u003cbr data-start=\"1430\" data-end=\"1433\"\u003e• High-speed linear actuator autofocus offers quiet, accurate focus\u003cbr data-start=\"1500\" data-end=\"1503\"\u003e• Manual focus with click-and-lock mechanism for precise control\u003cbr data-start=\"1567\" data-end=\"1570\"\u003e• Two AFL buttons and focus mode switch for convenient operation\u003cbr data-start=\"1634\" data-end=\"1637\"\u003e• Water- and oil-repellent front element coating\u003cbr data-start=\"1685\" data-end=\"1688\"\u003e• Dust- and splash-resistant construction\u003cbr data-start=\"1729\" data-end=\"1732\"\u003e• Durable brass bayonet mount for long-term reliability\u003c\/p\u003e\n\u003cp data-start=\"1791\" data-end=\"2357\"\u003e\u003cstrong data-start=\"1791\" data-end=\"1809\"\u003eSpecifications\u003c\/strong\u003e\u003cbr data-start=\"1809\" data-end=\"1812\"\u003e• Focal Length: 17-40mm (35mm Equivalent: 25.5-60mm)\u003cbr data-start=\"1864\" data-end=\"1867\"\u003e• Aperture: f\/1.8 to f\/16\u003cbr data-start=\"1892\" data-end=\"1895\"\u003e• Lens Mount: Canon RF\u003cbr data-start=\"1917\" data-end=\"1920\"\u003e• Format Coverage: APS-C\u003cbr data-start=\"1944\" data-end=\"1947\"\u003e• Angle of View: 76.5° to 37.1°\u003cbr data-start=\"1978\" data-end=\"1981\"\u003e• Minimum Focus Distance: 11\" \/ 28 cm\u003cbr data-start=\"2018\" data-end=\"2021\"\u003e• Magnification: 0.21x (1:4.8)\u003cbr data-start=\"2051\" data-end=\"2054\"\u003e• Optical Design: 17 Elements in 11 Groups\u003cbr data-start=\"2096\" data-end=\"2099\"\u003e• Diaphragm Blades: 11, Rounded\u003cbr data-start=\"2130\" data-end=\"2133\"\u003e• Focus Type: Autofocus\u003cbr data-start=\"2156\" data-end=\"2159\"\u003e• Image Stabilization: No\u003cbr data-start=\"2184\" data-end=\"2187\"\u003e• Filter Size: 67 mm (Front)\u003cbr data-start=\"2215\" data-end=\"2218\"\u003e• Dimensions: 2.9 x 4.6\" \/ 72.9 x 115.9 mm\u003cbr data-start=\"2260\" data-end=\"2263\"\u003e• Weight: 19.8 oz \/ 560 g\u003cbr data-start=\"2288\" data-end=\"2291\"\u003e• Package Weight: 2.165 lb\u003cbr data-start=\"2317\" data-end=\"2320\"\u003e• Box Dimensions: 11.4 x 4.9 x 4.7\"\u003c\/p\u003e","brand":"Sigma","offers":[{"title":"Default Title","offer_id":51244650430759,"sku":"214972","price":919.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0877\/0597\/7127\/files\/01_PPhoto_17_40_1.8_dc_025_Lmt.jpg?v=1775504135","url":"https:\/\/cambridgeworld.com\/products\/sigma-17-40mm-f-1-8-dc-art-lens-canon-rf","provider":"Cambridge World Inc","version":"1.0","type":"link"}