{"product_id":"sigma-af-17-40-f1-8-dc-art-sony-e","title":"SIGMA  AF 17-40 F1.8 DC Art [Sony E]","description":"\u003carticle class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-68e9042b-1e24-832c-a328-b26fc0a5765e-0\" data-testid=\"conversation-turn-6\" data-scroll-anchor=\"true\" data-turn=\"assistant\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:--spacing(4)] thread-sm:[--thread-content-margin:--spacing(6)] thread-lg:[--thread-content-margin:--spacing(16)] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] thread-lg:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\" tabindex=\"-1\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"2b69f6d2-7c5e-4e9f-acc6-26705493b191\" dir=\"auto\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal [.text-message+\u0026amp;]:mt-5\" data-message-model-slug=\"gpt-5\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden first:pt-[1px]\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full break-words light markdown-new-styling\"\u003e\n\u003cp data-start=\"43\" data-end=\"456\"\u003eThe SIGMA 17-40mm f\/1.8 DC Art for Sony E-Mount is a high-performance zoom lens designed for photographers and videographers who demand exceptional optical quality, brightness, and creative flexibility. As part of SIGMA’s acclaimed Art series, it delivers professional-grade sharpness and consistent image quality throughout the entire zoom range, even at its remarkable constant f\/1.8 aperture.\u003c\/p\u003e\n\u003cp data-start=\"458\" data-end=\"480\"\u003e\u003cstrong data-start=\"458\" data-end=\"478\"\u003eMain Advantages:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"481\" data-end=\"1257\"\u003e\n\u003cli data-start=\"481\" data-end=\"655\"\u003e\n\u003cp data-start=\"483\" data-end=\"655\"\u003e\u003cstrong data-start=\"483\" data-end=\"511\"\u003eConstant f\/1.8 aperture:\u003c\/strong\u003e Provides exceptional brightness across the entire zoom range, allowing superior depth-of-field control and outstanding low-light performance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"656\" data-end=\"834\"\u003e\n\u003cp data-start=\"658\" data-end=\"834\"\u003e\u003cstrong data-start=\"658\" data-end=\"696\"\u003eProfessional-grade optical design:\u003c\/strong\u003e Incorporates advanced aspherical and low-dispersion elements to ensure superb sharpness and minimal distortion or chromatic aberration.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"835\" data-end=\"976\"\u003e\n\u003cp data-start=\"837\" data-end=\"976\"\u003e\u003cstrong data-start=\"837\" data-end=\"867\"\u003eIdeal for hybrid creators:\u003c\/strong\u003e Perfect for both photography and video, offering smooth focus transitions and excellent subject isolation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"977\" data-end=\"1123\"\u003e\n\u003cp data-start=\"979\" data-end=\"1123\"\u003e\u003cstrong data-start=\"979\" data-end=\"1016\"\u003eDurable and precise construction:\u003c\/strong\u003e Built with SIGMA’s high-precision metal barrel for long-term reliability and a solid, professional feel.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1124\" data-end=\"1257\"\u003e\n\u003cp data-start=\"1126\" data-end=\"1257\"\u003e\u003cstrong data-start=\"1126\" data-end=\"1149\"\u003eArt series quality:\u003c\/strong\u003e Delivers color accuracy, contrast, and clarity that meet the demanding standards of professional imaging.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1259\" data-end=\"1283\"\u003e\u003cstrong data-start=\"1259\" data-end=\"1281\"\u003eTechnical Details:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1284\" data-end=\"1733\"\u003e\n\u003cli data-start=\"1284\" data-end=\"1316\"\u003e\n\u003cp data-start=\"1286\" data-end=\"1316\"\u003eMount: Sony E (APS-C format)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1317\" data-end=\"1391\"\u003e\n\u003cp data-start=\"1319\" data-end=\"1391\"\u003eFocal length: 17–40mm (equivalent to approx. 25.5–60mm in 35mm format)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1392\" data-end=\"1419\"\u003e\n\u003cp data-start=\"1394\" data-end=\"1419\"\u003eMaximum aperture: f\/1.8\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1420\" data-end=\"1446\"\u003e\n\u003cp data-start=\"1422\" data-end=\"1446\"\u003eMinimum aperture: f\/16\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1447\" data-end=\"1541\"\u003e\n\u003cp data-start=\"1449\" data-end=\"1541\"\u003eOptical construction: advanced multi-element design with aspherical and SLD glass elements\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1542\" data-end=\"1605\"\u003e\n\u003cp data-start=\"1544\" data-end=\"1605\"\u003eAperture blades: 9 rounded blades for smooth, natural bokeh\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1606\" data-end=\"1648\"\u003e\n\u003cp data-start=\"1608\" data-end=\"1648\"\u003eMinimum focus distance: approx. 0.25 m\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1649\" data-end=\"1671\"\u003e\n\u003cp data-start=\"1651\" data-end=\"1671\"\u003eFilter size: 77 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1672\" data-end=\"1707\"\u003e\n\u003cp data-start=\"1674\" data-end=\"1707\"\u003eDimensions: approx. 85 × 120 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1708\" data-end=\"1733\"\u003e\n\u003cp data-start=\"1710\" data-end=\"1733\"\u003eWeight: approx. 830 g\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1735\" data-end=\"2088\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"1735\" data-end=\"1752\"\u003eApplications:\u003c\/strong\u003e\u003cbr data-start=\"1752\" data-end=\"1755\"\u003eIdeal for landscape, architecture, event, and low-light photography, as well as video production. The SIGMA 17-40mm f\/1.8 DC Art [Sony E] offers a unique combination of versatility, speed, and optical excellence — making it a top choice for professionals and enthusiasts seeking uncompromising image quality across a wide zoom range.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"z-0 flex min-h-[46px] justify-start\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"mt-3 w-full empty:hidden\"\u003e\n\u003cdiv class=\"text-center\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e","brand":"Sigma","offers":[{"title":"Default Title","offer_id":58191469609343,"sku":"085126214654","price":884.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1025\/1059\/2383\/files\/sigma_214965_17_40mm_f_1_8_dc_art_1901072.jpg?v=1786921975","url":"https:\/\/fotos-altura.es\/products\/sigma-af-17-40-f1-8-dc-art-sony-e","provider":"Fotos Altura SL","version":"1.0","type":"link"}