{"product_id":"sigma-af-17-40mm-f1-8-dc-art-lens-canon-rf","title":"Sigma AF 17-40mm F1.8 DC Art Lens (Canon RF)","description":"\u003ch3\u003eSigma AF 17-40mm F1.8 DC Art Lens (Canon RF)\u003cbr\u003e\u003cbr\u003e\n\u003c\/h3\u003e\n\u003ch3\u003eIntroduction\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eSigma AF 17-40mm F1.8 DC Art Lens\u003c\/strong\u003e is designed for \u003cstrong\u003eCanon RF mount users\u003c\/strong\u003e who demand \u003cstrong\u003eexceptional optical performance and creative flexibility\u003c\/strong\u003e. With its wide focal range and fast aperture, this lens is ideal for photographers and videographers seeking versatility in low-light and dynamic shooting environments.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eDesign and Build Quality\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCrafted under Sigma’s renowned Art series standards\u003c\/strong\u003e, the lens features a \u003cstrong\u003erobust construction with premium materials\u003c\/strong\u003e. Its ergonomic design ensures comfortable handling, while the \u003cstrong\u003eCanon RF mount integration\u003c\/strong\u003e provides \u003cstrong\u003eseamless compatibility \u003c\/strong\u003ewith modern mirrorless systems.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eOptical Performance\u003c\/h3\u003e\n\u003cp\u003eThe standout feature of this lens is its constant F1.8 aperture across the zoom range, \u003cstrong\u003eoffering superior brightness and depth-of-field control.\u003c\/strong\u003e The optical design minimizes distortion and chromatic aberrations, delivering \u003cstrong\u003esharp, high-contrast images from edge to edge.\u003c\/strong\u003e This makes it suitable for landscapes, architecture, portraits, and creative wide-angle compositions.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eVersatility\u003c\/h3\u003e\n\u003cp\u003eCovering focal lengths from 17mm to 40mm, the lens \u003cstrong\u003eadapts to a wide range of scenarios.\u003c\/strong\u003e At 17mm, it excels in capturing expansive scenes, while at 40mm, it provides a \u003cstrong\u003enatural perspective for portraits and everyday photography.\u003c\/strong\u003e Videographers benefit from smooth focus transitions and consistent exposure, enhancing cinematic production quality.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eConclusion\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eSigma AF 17-40mm F1.8 DC Art Lens (Canon RF)\u003c\/strong\u003e is a groundbreaking addition to the \u003cstrong\u003eArt series lineup\u003c\/strong\u003e. Its combination of wide focal range, constant F1.8 aperture, and professional-grade optics makes it a \u003cstrong\u003epowerful tool for creative expression. \u003c\/strong\u003eWhether shooting stills or video, this lens delivers outstanding performance, making it a \u003cstrong\u003evaluable investment for serious Canon RF users.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"title_PCPNqBQRJv\"\u003e\n\u003ch2 class=\"text_TAw0W35QK_ comfy_TAw0W35QK_ sizeTitle1_TAw0W35QK_ weightNormal_TAw0W35QK_ primary_i3MsQsqoe0\"\u003eSigma 17-40mm f\/1.8 DC Art\u003cspan\u003e \u003c\/span\u003eSpecs\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"group_fDXOr6EpR9\"\u003e\n\u003ctable class=\"table_fDXOr6EpR9\"\u003e\n\u003ctbody\u003e\n\u003ctr class=\"pair_KqJ3Q3GPKv\"\u003e\n\u003ctd class=\"label_KqJ3Q3GPKv firstSpecWhenNoGroupName_KqJ3Q3GPKv\"\u003eFocal Length\u003c\/td\u003e\n\u003ctd class=\"value_KqJ3Q3GPKv firstSpecWhenNoGroupName_KqJ3Q3GPKv\"\u003e\n\u003cdiv class=\"expandableValue_KqJ3Q3GPKv\"\u003e\u003cspan\u003e17 to 40mm (35mm Equivalent: 25.5 to 60mm)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pair_KqJ3Q3GPKv\"\u003e\n\u003ctd class=\"label_KqJ3Q3GPKv\"\u003eAperture\u003c\/td\u003e\n\u003ctd class=\"value_KqJ3Q3GPKv\"\u003e\n\u003cdiv class=\"expandableValue_KqJ3Q3GPKv\"\u003e\u003cspan\u003eMaximum: f\/1.8\u003cbr\u003eMinimum: f\/16\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pair_KqJ3Q3GPKv\"\u003e\n\u003ctd class=\"label_KqJ3Q3GPKv\"\u003eLens Mount\u003c\/td\u003e\n\u003ctd class=\"value_KqJ3Q3GPKv\"\u003e\n\u003cdiv class=\"expandableValue_KqJ3Q3GPKv\"\u003e\u003cspan\u003eCanon RF\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pair_KqJ3Q3GPKv\"\u003e\n\u003ctd class=\"label_KqJ3Q3GPKv\"\u003eLens Format Coverage\u003c\/td\u003e\n\u003ctd class=\"value_KqJ3Q3GPKv\"\u003e\n\u003cdiv class=\"expandableValue_KqJ3Q3GPKv\"\u003e\u003cspan\u003eAPS-C\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pair_KqJ3Q3GPKv\"\u003e\n\u003ctd class=\"label_KqJ3Q3GPKv\"\u003eAngle of View\u003c\/td\u003e\n\u003ctd class=\"value_KqJ3Q3GPKv\"\u003e\n\u003cdiv class=\"expandableValue_KqJ3Q3GPKv\"\u003e\u003cspan\u003e79.7° to 39.1°\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pair_KqJ3Q3GPKv\"\u003e\n\u003ctd class=\"label_KqJ3Q3GPKv\"\u003eMinimum Focus Distance\u003c\/td\u003e\n\u003ctd class=\"value_KqJ3Q3GPKv\"\u003e\n\u003cdiv class=\"expandableValue_KqJ3Q3GPKv\"\u003e\u003cspan\u003e11\" \/ 28 cm\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pair_KqJ3Q3GPKv\"\u003e\n\u003ctd class=\"label_KqJ3Q3GPKv\"\u003eMagnification\u003c\/td\u003e\n\u003ctd class=\"value_KqJ3Q3GPKv\"\u003e\n\u003cdiv class=\"expandableValue_KqJ3Q3GPKv\"\u003e\u003cspan\u003e1:4.8 Macro Reproduction Ratio\u003cbr\u003e0.21x Magnification\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pair_KqJ3Q3GPKv\"\u003e\n\u003ctd class=\"label_KqJ3Q3GPKv\"\u003eOptical Design\u003c\/td\u003e\n\u003ctd class=\"value_KqJ3Q3GPKv\"\u003e\n\u003cdiv class=\"expandableValue_KqJ3Q3GPKv\"\u003e\u003cspan\u003e17 Elements in 11 Groups\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pair_KqJ3Q3GPKv\"\u003e\n\u003ctd class=\"label_KqJ3Q3GPKv\"\u003eAperture\/Iris Blades\u003c\/td\u003e\n\u003ctd class=\"value_KqJ3Q3GPKv\"\u003e\n\u003cdiv class=\"expandableValue_KqJ3Q3GPKv\"\u003e\u003cspan\u003e11, Rounded\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pair_KqJ3Q3GPKv\"\u003e\n\u003ctd class=\"label_KqJ3Q3GPKv\"\u003eFocus Type\u003c\/td\u003e\n\u003ctd class=\"value_KqJ3Q3GPKv\"\u003e\n\u003cdiv class=\"expandableValue_KqJ3Q3GPKv\"\u003e\u003cspan\u003eAutofocus\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pair_KqJ3Q3GPKv\"\u003e\n\u003ctd class=\"label_KqJ3Q3GPKv\"\u003eImage Stabilization\u003c\/td\u003e\n\u003ctd class=\"value_KqJ3Q3GPKv\"\u003e\n\u003cdiv class=\"expandableValue_KqJ3Q3GPKv\"\u003e\u003cspan\u003eNo\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pair_KqJ3Q3GPKv\"\u003e\n\u003ctd class=\"label_KqJ3Q3GPKv\"\u003eFilter Size\u003c\/td\u003e\n\u003ctd class=\"value_KqJ3Q3GPKv\"\u003e\n\u003cdiv class=\"expandableValue_KqJ3Q3GPKv\"\u003e\u003cspan\u003e67 mm (Front)\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pair_KqJ3Q3GPKv\"\u003e\n\u003ctd class=\"label_KqJ3Q3GPKv\"\u003eDimensions\u003c\/td\u003e\n\u003ctd class=\"value_KqJ3Q3GPKv\"\u003e\n\u003cdiv class=\"expandableValue_KqJ3Q3GPKv\"\u003e\u003cspan\u003eø: 2.9 x L: 4.6\" \/ ø: 72.9 x L: 115.9 mm\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"pair_KqJ3Q3GPKv\"\u003e\n\u003ctd class=\"label_KqJ3Q3GPKv\"\u003eWeight\u003c\/td\u003e\n\u003ctd class=\"value_KqJ3Q3GPKv\"\u003e\n\u003cdiv class=\"expandableValue_KqJ3Q3GPKv\"\u003e\u003cspan\u003e18.9 oz \/ 535 g\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e","brand":"Sigma","offers":[{"title":"Default Title","offer_id":47233632927915,"sku":"8332901","price":1171.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/2605\/6619\/files\/SigmaAF17-40mm.jpg?v=1781525477","url":"https:\/\/keymraphoto.com\/products\/sigma-af-17-40mm-f1-8-dc-art-lens-canon-rf","provider":"KEYMRA PHOTO","version":"1.0","type":"link"}