{"product_id":"sigma-af-17mm-f-4-dg-i-contemporary-lens-l-mount","title":"Sigma 17mm F4 DG I Contemporary Lens - L Mount","description":"\u003cp\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/LTHx8MCHzXI?si=Qungw-EM4giuNffR\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch2\u003eSigma 17mm F4 DG DN | Contemporary – L-Mount \u0026amp; Sony E-Mount\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eSigma 17mm F4 DG DN | Contemporary\u003c\/strong\u003e is an ultra-wide, full-frame prime lens designed for photographers who want big impact in a compact package. Part of the beautifully crafted \u003cem\u003eI Series\u003c\/em\u003e, this lens is perfect for travel, vlogging, architecture, interiors, and sweeping landscapes—offering an expansive field of view without the bulk.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0554\/9657\/3025\/files\/Sigma-17mm-F4-DG-DN-Contemporary-17_4_dgdn_c023_Impression_Image_Tony-Noel_045.jpg?v=1716813752\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eLens Mounts\u003c\/strong\u003e: L-Mount and Sony E-Mount\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSensor Format\u003c\/strong\u003e: Full-frame (DG)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFocal Length\u003c\/strong\u003e: 17mm – ultra-wide perspective for dynamic compositions\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMaximum Aperture\u003c\/strong\u003e: f\/4 – compact and consistent with excellent depth of field control\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMinimum Aperture\u003c\/strong\u003e: f\/22\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAngle of View\u003c\/strong\u003e: 103.7°\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAperture Blades\u003c\/strong\u003e: 7 (rounded diaphragm for smooth out-of-focus areas)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMinimum Focusing Distance\u003c\/strong\u003e: 12cm \/ 4.8in\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMaximum Magnification\u003c\/strong\u003e: 1:3.6\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFilter Size\u003c\/strong\u003e: 55mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0554\/9657\/3025\/files\/Sigma-17mm-F4-DG-DN-Contemporary-17_4_dgdn_c023_Impression_Image_Tony-Noel_068.jpg?v=1716813752\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch3\u003eOptical Design\u003c\/h3\u003e\n\u003cp\u003eWith \u003cstrong\u003e9 elements in 8 groups\u003c\/strong\u003e, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e2 SLD (Special Low Dispersion) elements\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e3 aspherical lenses\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis lens provides excellent sharpness, minimal distortion, and strong close-up performance—despite its ultra-wide coverage. The short focusing distance adds creative flexibility for unique angles and foreground emphasis.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0554\/9657\/3025\/files\/Sigma-AF-17mm-F4-DG-I-Contemporary-Lens-lifestyle-photo-3.webp?v=1751467171\" alt=\"Sigma AF 17mm F\/4 DG I Contemporary Lens lifestyle photo\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003ch3\u003eBuild \u0026amp; Dimensions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eL-Mount\u003c\/strong\u003e: 64.0mm × 48.8mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSony E-Mount\u003c\/strong\u003e: 64.0mm × 50.8mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eL-Mount: 225g \/ 7.9oz\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSony E-Mount: 220g \/ 7.8oz\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDespite its ultra-wide field of view, the lens remains exceptionally compact and lightweight. Its all-metal construction and tactile controls reflect Sigma’s premium I Series design ethos.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0554\/9657\/3025\/files\/Sigma-AF-17mm-F4-DG-I-Contemporary-Lens-lifestyle-photo-4.webp?v=1751467171\" alt=\"Sigma AF 17mm F\/4 DG I Contemporary Lens lifestyle photo\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003ch3\u003eSupplied Accessories\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eLens Hood (LH576-06B \/ LH576-06S)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMagnetic Metal Lens Cap (LCF55-02 MB \/ MS)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eStandard Front Cap (LCF-55 IV)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRear Cap (LCR III)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eProtective Pouch\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0554\/9657\/3025\/files\/Sigma-17mm-F4-DG-DN-Contemporary-17_4_dgdn_c023_Impression_Image_Tony-Noel_049.jpg?v=1716813752\" alt=\"\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003eWhy Choose the Sigma 17mm F4 DG DN?\u003c\/h3\u003e\n\u003cp\u003eCompact yet capable, the Sigma 17mm F4 DG DN is a superb ultra-wide option for photographers and content creators who want expansive framing without sacrificing portability. Ideal for travel, vlogging, and environmental storytelling—it’s a small lens with a big perspective.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0554\/9657\/3025\/files\/Sigma-17mm-F4-DG-DN-Contemporary-17_4_dgdn_c023_Impression_Image_Mark-Cornick_09.jpg?v=1716813752\" alt=\"\"\u003e\u003c\/p\u003e","brand":"Sigma","offers":[{"title":"Default Title","offer_id":42275083518049,"sku":"0085126941888","price":579.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0554\/9657\/3025\/files\/Sigma-AF-17mm-F-4-DG-I-Contemporary-Lens-L-Mount-product-photo-1.webp?v=1751450293","url":"https:\/\/carmarcameras.mom\/products\/sigma-af-17mm-f-4-dg-i-contemporary-lens-l-mount","provider":"Carmarthen Camera Centre","version":"1.0","type":"link"}