{"product_id":"sigma-17-40mm-f-1-8-dc-art-lens-l-mount","title":"Sigma 17-40mm f\/1.8 DC Art Lens (L Mount)","description":"\u003cp data-start=\"186\" data-end=\"407\"\u003e\u003cstrong data-start=\"186\" data-end=\"203\"\u003eItem Includes\u003c\/strong\u003e\u003cbr data-start=\"203\" data-end=\"206\"\u003e• Sigma 17-40mm f\/1.8 DC Art Lens (L-Mount)\u003cbr data-start=\"249\" data-end=\"252\"\u003e• Sigma LCF-67 IV 67mm Front Lens Cap\u003cbr data-start=\"289\" data-end=\"292\"\u003e• Sigma LCR III Rear Lens Cap (L-Mount)\u003cbr data-start=\"331\" data-end=\"334\"\u003e• Lens Hood\u003cbr data-start=\"345\" data-end=\"348\"\u003e• Carrying Pouch\u003cbr data-start=\"364\" data-end=\"367\"\u003e• Limited 4-Year Manufacturer Warranty\u003c\/p\u003e\n\u003cp data-start=\"409\" data-end=\"804\"\u003e\u003cstrong data-start=\"409\" data-end=\"421\"\u003eOverview\u003c\/strong\u003e\u003cbr data-start=\"421\" data-end=\"424\"\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 L-Mount\u003c\/span\u003e\u003c\/span\u003e is a bright, wide-to-normal zoom designed for APS-C L-Mount mirrorless cameras. Its constant f\/1.8 aperture delivers prime-like image quality across the entire zoom range. Lightweight and versatile, it excels in both photography and video applications, offering smooth bokeh, minimal focus breathing, and reliable low-light performance.\u003c\/p\u003e\n\u003cp data-start=\"806\" data-end=\"1781\"\u003e\u003cstrong data-start=\"806\" data-end=\"818\"\u003eFeatures\u003c\/strong\u003e\u003cbr data-start=\"818\" data-end=\"821\"\u003e• 17-40mm focal range (35mm equivalent: 25.5-60mm) covers wide-angle to normal perspectives\u003cbr data-start=\"912\" data-end=\"915\"\u003e• Constant f\/1.8 aperture ensures low-light capability and shallow depth of field\u003cbr data-start=\"996\" data-end=\"999\"\u003e• 17 elements in 11 groups with four aspherical and four SLD elements reduce aberrations and flare\u003cbr data-start=\"1097\" data-end=\"1100\"\u003e• 11-blade rounded diaphragm produces smooth bokeh and clear subject separation\u003cbr data-start=\"1179\" data-end=\"1182\"\u003e• Minimum focus distance of 11\" (28 cm) and maximum magnification of 0.21x (1:4.8) for tight compositions\u003cbr data-start=\"1287\" data-end=\"1290\"\u003e• Internal zoom design maintains lens length while zooming\u003cbr data-start=\"1348\" data-end=\"1351\"\u003e• Reduced focus breathing supports smooth video recording\u003cbr data-start=\"1408\" data-end=\"1411\"\u003e• High-speed linear actuator autofocus provides quiet, precise tracking\u003cbr data-start=\"1482\" data-end=\"1485\"\u003e• Manual focus with click-and-lock mechanism for controlled adjustments\u003cbr data-start=\"1556\" data-end=\"1559\"\u003e• Two AFL buttons and focus mode switch for convenient operation\u003cbr data-start=\"1623\" data-end=\"1626\"\u003e• Water- and oil-repellent front element coating\u003cbr data-start=\"1674\" data-end=\"1677\"\u003e• Dust- and splash-resistant construction\u003cbr data-start=\"1718\" data-end=\"1721\"\u003e• Durable brass bayonet mount for long-lasting performance\u003c\/p\u003e\n\u003cp data-start=\"1783\" data-end=\"2348\"\u003e\u003cstrong data-start=\"1783\" data-end=\"1801\"\u003eSpecifications\u003c\/strong\u003e\u003cbr data-start=\"1801\" data-end=\"1804\"\u003e• Focal Length: 17-40mm (35mm Equivalent: 25.5-60mm)\u003cbr data-start=\"1856\" data-end=\"1859\"\u003e• Aperture: f\/1.8 to f\/16\u003cbr data-start=\"1884\" data-end=\"1887\"\u003e• Lens Mount: L-Mount\u003cbr data-start=\"1908\" data-end=\"1911\"\u003e• Format Coverage: APS-C\u003cbr data-start=\"1935\" data-end=\"1938\"\u003e• Angle of View: 76.5° to 37.1°\u003cbr data-start=\"1969\" data-end=\"1972\"\u003e• Minimum Focus Distance: 11\" \/ 28 cm\u003cbr data-start=\"2009\" data-end=\"2012\"\u003e• Magnification: 0.21x (1:4.8)\u003cbr data-start=\"2042\" data-end=\"2045\"\u003e• Optical Design: 17 Elements in 11 Groups\u003cbr data-start=\"2087\" data-end=\"2090\"\u003e• Diaphragm Blades: 11, Rounded\u003cbr data-start=\"2121\" data-end=\"2124\"\u003e• Focus Type: Autofocus\u003cbr data-start=\"2147\" data-end=\"2150\"\u003e• Image Stabilization: No\u003cbr data-start=\"2175\" data-end=\"2178\"\u003e• Filter Size: 67 mm (Front)\u003cbr data-start=\"2206\" data-end=\"2209\"\u003e• Dimensions: 2.9 x 4.6\" \/ 72.9 x 115.9 mm\u003cbr data-start=\"2251\" data-end=\"2254\"\u003e• Weight: 19.8 oz \/ 560 g\u003cbr data-start=\"2279\" data-end=\"2282\"\u003e• Package Weight: 2.165 lb\u003cbr data-start=\"2308\" data-end=\"2311\"\u003e• Box Dimensions: 11.4 x 4.9 x 4.7\"\u003c\/p\u003e","brand":"Sigma","offers":[{"title":"Default Title","offer_id":51244645810471,"sku":"214969","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-l-mount","provider":"Cambridge World Inc","version":"1.0","type":"link"}