{"product_id":"sigma-17-40mm-f18-dc-art-lens-for-canon-rf-mount","title":"Sigma 17-40mm f\/1.8 DC Art Lens for Canon RF Mount","description":"\n\u003ch2\u003eSigma 17-40mm f\/1.8 DC Art Lens for Canon RF Mount Summary\u003c\/h2\u003e\n\u003cp\u003eThe Sigma 17-40mm f\/1.8 DC Art Lens for Canon RF Mount is a fast standard zoom lens, which is designed specifically for APS-C format mirrorless cameras, such as the \u003ca href=\"https:\/\/www.parkcameras.com\/used\/cameras\/canon\/used-canon-eos-r10-mirrorless-camera-body\/\"\u003e\u003cfont color=\"#0066cc\"\u003eCanon EOS R10\u003c\/font\u003e\u003c\/a\u003e, and \u003ca href=\"https:\/\/www.parkcameras.com\/shop\/canon-eos-r7-mirrorless-camera-body_1012170r\"\u003e\u003cfont color=\"#0066cc\"\u003eR7\u003c\/font\u003e\u003c\/a\u003e. It delivers a very useful 27-64mm full-frame equivalent zoom range, which allows you to cover everything from landscapes, interiors, street and environmental portraits to short telephoto portraits and everyday photography and video. With a constant f\/1.8 maximum aperture throughout the range, the lens also provides excellent low-light performance and depth of field control, which is  ideal for both photography and video content.\u003c\/p\u003e\n\u003cp\u003eThis lens also benefits from Sigma’s updated optical design, which includes 17 elements in 11 groups, with four aspherical and four SLD elements that maintain sharpness and reduce chromatic aberration. Arguably, this Art series zoom even offers image quality, which is on par with prime lenses, allowing you to leave the primes at home and bring just this one zoom.\u003c\/p\u003e\n\u003cp\u003eIt features a compact size and internal zoom mechanism, with a design that is well balanced for handheld shooting with a \u003ca href=\"https:\/\/www.parkcameras.com\/cameras\/mirrorless-cameras\/canon\/\"\u003e\u003cfont color=\"#0066cc\"\u003eCanon mirrorless camera\u003c\/font\u003e\u003c\/a\u003e, or on a gimbal, while the 67mm front filter thread is convenient for anyone who already owns filters in this popular size. The autofocus system is driven by \u003ca href=\"https:\/\/www.parkcameras.com\/brand\/sigma\/\"\u003e\u003cfont color=\"#0066cc\"\u003eSigma’s\u003c\/font\u003e\u003c\/a\u003e HLA (High-response Linear Actuator), which is fast, quiet and accurate, and for video the lens benefits from minimal focus breathing for manual focus pulls, with a de-clickable aperture ring for silent exposure changes.\u003c\/p\u003e\n\u003cdiv class=\"book-appoint home-comp\" style=\"border: 1px solid rgba(0, 0, 0, 0.1); border-image: none; padding-top: 20px; padding-bottom: 20px; margin-top: 30px; margin-bottom: 30px; background-color: rgba(45, 77, 156, 0.05);\"\u003e\n\u003cdiv class=\"cell large-8 medium-8 small-12\" style=\"padding-right: 25px; padding-left: 25px;\"\u003e\n\u003cp class=\"head\" style=\"text-align: center;\"\u003eWant to know more?\u003c\/p\u003e\n\u003cp class=\"sub\" style=\"text-align: center;\"\u003eDive into our review of the first Art series crop format zoom. \u003ca class=\"button comp-page\" href=\"https:\/\/www.parkcameras.com\/blog\/reviews\/sigma-17-40mm-f18-dc-art-first-look-review_apsc-06\" style=\"margin-right: auto; margin-left: auto;\" target=\"_blank\"\u003eRead our Review\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3\u003eSigma 17-40mm F1.8 DC | Art Key Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePortable and lightweight standard zoom for crop sensor cameras\u003c\/li\u003e\n\u003cli\u003eStills and video-ready\u003c\/li\u003e\n\u003cli\u003eExcellent image quality comparable to a prime lens\u003c\/li\u003e\n\u003cli\u003eHLA (High-response Linear Actuator) for fast, quiet autofocus.\u003c\/li\u003e\n\u003cli\u003eInner zoom maintains overall length\u003c\/li\u003e\n\u003cli\u003eAperture ring with click and lock switches\u003c\/li\u003e\n\u003cli\u003eTwo AFL button\u003c\/li\u003e\n\u003cli\u003eFocus Mode switch\u003c\/li\u003e\n\u003cli\u003eDust and splash resistant structure\u003c\/li\u003e\n\u003cli\u003eUndergoes Sigma’s proprietary MTF measuring system\u003c\/li\u003e\n\u003cli\u003eWater and oil-repellent coating\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSigma 17-40mm f\/1.8 DC Art Lens for Canon RF Mount in More Detail\u003c\/h2\u003e\n\u003ch3\u003eConstant aperture zoom lens with Prime Performance\u003c\/h3\u003e\n\u003cp\u003eThe Sigma 17-40mm f\/1.8 DC Art offers image quality comparable to a prime lens across the entire zoom range. It maintains an f\/1.8 maximum aperture throughout, allowing for excellent low-light control with strong background separation.\u003c\/p\u003e\n\u003cp\u003eFour high-precision aspherical and four SLD elements help to reduce axial chromatic aberration and sagittal coma flare, providing high resolution and accurate detail, even when shooting wide open.\u003c\/p\u003e\n\u003ch3\u003eExpanded Zoom Range with APS-C Coverage\u003c\/h3\u003e\n\u003cp\u003eCompared to the well-known 18-35mm f\/1.8 Art, this updated lens extends the wide end to 17mm and reaches 40mm at the telephoto end. The result is a more versatile 27.2-64mm for Canon RF, allowing you to capture everything from landscapes to portraiture without needing to switch lenses.\u003c\/p\u003e\n\u003ch3\u003eImproved Handling with Lighter, More Compact Design\u003c\/h3\u003e\n\u003cp\u003eThe 17-40mm f\/1.8 is significantly lighter and more compact than its predecessor. It weighs around 535g and is compatible with 67mm threaded lens filters. The zoom also benefits from an inner zoom mechanism, so the barrel length stays constant during zooming and focusing, which improves balance on gimbals while helping to protect the lens from dust and moisture intrusion.\u003c\/p\u003e\n\u003ch3\u003eLens Coatings and All-Weather Construction\u003c\/h3\u003e\n\u003cp\u003eFlare and ghosting are minimised thanks to the use of Sigma’s Super Multi-Layer Coating, which helps to maintain contrast and clarity in backlit conditions. A dust and splash-resistant structure also adds durability, with a water and oil-repellent coating on the front element for easier cleaning after shooting outdoors.\u003c\/p\u003e\n\u003ch3\u003eOptimised Autofocus and Focus System\u003c\/h3\u003e\n\u003cp\u003eThe lens uses Sigma’s well known HLA (High-response Linear Actuator) to deliver fast, quiet and precise autofocus. This is ideal for both video and stills, especially when used on a gimbal or with eye or face detection tracking. Focus breathing is reduced too, enabling consistent framing when pulling focus during video. \u003c\/p\u003e\n\u003ch3\u003eLens Barrel Controls\u003c\/h3\u003e\n\u003cp\u003eAn aperture ring is included for exposure control, with de-click via a switch to allow smooth, silent adjustment while recording video. A separate lock switch prevents accidental changes to the aperture during shoots. The lens also includes two AFL buttons (assignable on compatible bodies) and a manual focus switch for quick changes while shooting.\u003c\/p\u003e\n\u003ch3\u003eAdditional Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEach lens is individually tested using Sigma’s proprietary MTF measuring system\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat’s in the box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSigma 17-40mm f\/1.8 DC Art Lens for Canon RF Mount\u003c\/li\u003e\n\u003cli\u003eLens Hood LH728-02\u003c\/li\u003e\n\u003cli\u003eFront Cap LCF-67 IV\u003c\/li\u003e\n\u003cli\u003eRear Cap LCR III \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSigma 17-40mm F1.8 DC | Art Specifications\u003c\/h2\u003e\n\u003ctable cellpadding=\"0\" cellspacing=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eLens construction\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e17 elements in 11 groups (4 SLD, 4 aspherical elements)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eAngle of View\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e79.7-39.1°\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eNumber of Diaphragm Blades\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e11 (Rounded Diaphragm) \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eMinimum Aperture\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eF16\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eMinimum Focusing Distance\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e28cm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eMaximum Magnification Ratio\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e1:4.8 at 40mm \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eFilter Size\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eφ67mm \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eMaximum Diameter x Length\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eφ72.9mm x 115.9mm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eWeight\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e535g\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003chr\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable class=\"comp-specs\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"display: none;\"\u003eOffers: \n \n N\/A\n \n \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"display: none;\"\u003eOffer Category: \n \n N\/A\n \n \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"display: none;\"\u003eOffer Product Type: \n \n N\/A\n \n \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"display: none;\"\u003eAutofocus: \n \n N\/A\n \n \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"display: none;\"\u003eAperture ring: \n \n N\/A\n \n \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"display: none;\"\u003eConstant Aperture: \n \n N\/A\n \n \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"display: none;\"\u003eLens CIPA Image stabilization rating: \n \n N\/A\n \n \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"display: none;\"\u003eColour: \n \n N\/A\n \n \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"display: none;\"\u003eDiameter (mm): \n \n N\/A\n \n \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"display: none;\"\u003eLength (mm): \n \n N\/A\n \n \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"display: none;\"\u003eWeight (g): \n \n N\/A\n \n \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"display: none;\"\u003eDistance scale: \n \n N\/A\n \n \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"display: none;\"\u003eDoF scale: \n \n N\/A\n \n \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"display: none;\"\u003eElements: \n \n N\/A\n \n \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"display: none;\"\u003eEnvironmental Sealing: \n \n N\/A\n \n \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"display: none;\"\u003eFocus distance limiter: \n \n N\/A\n \n \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal length: \n \n \n 17 - 40 mm\n \n \n \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"display: none;\"\u003eFocus method: \n \n N\/A\n \n \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"display: none;\"\u003eFilter Thread: \n \n N\/A\n \n \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"display: none;\"\u003eFull time manual: \n \n N\/A\n \n \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"display: none;\"\u003eGroups: \n \n N\/A\n \n \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"display: none;\"\u003eHood supplied: \n \n N\/A\n \n \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"display: none;\"\u003eLens Image stabilization: \n \n N\/A\n \n \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"display: none;\"\u003eLens mount: \n \n N\/A\n \n \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"display: none;\"\u003eLens Materials: \n \n N\/A\n \n \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum focal length: \n \n \n 40.0\n \n \n \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"display: none;\"\u003eMaximum magnification: \n \n N\/A\n \n \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"display: none;\"\u003eMaximum aperture (number): \n \n N\/A\n \n \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"display: none;\"\u003eMaximum aperture (text): \n \n N\/A\n \n \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"display: none;\"\u003eMax Format size: \n \n N\/A\n \n \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum focal length: \n \n \n 17.0\n \n \n \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"display: none;\"\u003eLens Minimum focus distance (m): \n \n N\/A\n \n \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"display: none;\"\u003eMinimum aperture (number): \n \n N\/A\n \n \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"display: none;\"\u003eMinimum aperture (text): \n \n N\/A\n \n \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"display: none;\"\u003eMotor type: \n \n N\/A\n \n \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"display: none;\"\u003eNumber of diaphragm blades: \n \n N\/A\n \n \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"display: none;\"\u003ePower zoom: \n \n N\/A\n \n \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"display: none;\"\u003eSpecial elements \/ coatings: \n \n N\/A\n \n \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"display: none;\"\u003eTripod collar: \n \n N\/A\n \n \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"display: none;\"\u003eLens type: \n \n N\/A\n \n \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"display: none;\"\u003eWide\/Tele: \n \n N\/A\n \n \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"display: none;\"\u003eLevel: \n \n N\/A\n \n \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"display: none;\"\u003eYear Of Release: \n \n N\/A\n \n \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"display: none;\"\u003eBest For: \n \n N\/A\n \n \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest For Holiday and Landscape: \n \n \n Yes\n \n \n \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest For Interior and Architecture: \n \n \n Yes\n \n \n \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"display: none;\"\u003eBest For Fashion and Portrait: \n \n N\/A\n \n \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"display: none;\"\u003eBest For Macro and Still Life: \n \n N\/A\n \n \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"display: none;\"\u003eBest For Astro: \n \n N\/A\n \n \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"display: none;\"\u003eBest For Street: \n \n N\/A\n \n \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"display: none;\"\u003eBest For Wildlife and Sport: \n \n N\/A\n \n \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"display: none;\"\u003eZoom lock: \n \n N\/A\n \n \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"display: none;\"\u003eZoom method: \n \n N\/A\n \n \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"display: none;\"\u003eNotes: \n \n N\/A\n \n \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Sigma","offers":[{"title":"Default Title","offer_id":54276613439701,"sku":"G2426406C","price":779.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/3507\/3493\/files\/G2426406C.jpg?v=1784210714","url":"https:\/\/parkcameras.store\/products\/sigma-17-40mm-f18-dc-art-lens-for-canon-rf-mount","provider":"My Store","version":"1.0","type":"link"}