{"product_id":"canon-extender-rf-1-4x","title":"Canon Extender RF 1.4x","description":"\u003ch2\u003e1.4x Teleconverter for Canon RF Telephoto Lenses\u003c\/h2\u003e\n\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eCanon Extender RF 1.4x\u003c\/strong\u003e sits between a compatible RF telephoto and the camera and multiplies the focal length by 1.4, at the cost of one stop of light. A 400mm becomes a 560mm, and it does so in 20.3 mm of length and 225 g — far less than carrying a longer lens.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1.4x magnification\u003c\/strong\u003e: 400mm becomes 560mm, 600mm becomes 840mm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne stop of light lost\u003c\/strong\u003e: an f\/4 lens works at f\/5.6 with the extender fitted.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e7 elements in 4 groups\u003c\/strong\u003e: an optical design matched to the RF telephotos it is designed for.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDust and moisture resistant\u003c\/strong\u003e, like the L lenses it pairs with.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e225 g and 20.3 mm long\u003c\/strong\u003e: it lives in a pocket of the bag, not in the space a lens would take.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMount\u003c\/strong\u003e: Canon RF\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImage size\u003c\/strong\u003e: full frame\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMagnification\u003c\/strong\u003e: 1.4x\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLens construction\u003c\/strong\u003e: 7 elements in 4 groups\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDust and moisture resistance\u003c\/strong\u003e: yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions\u003c\/strong\u003e: 71.2 x 20.3 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 225 g\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupplied accessories\u003c\/strong\u003e: Extender Cap RF, LP811 pouch, Lens Dust Cap RF\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat it is good for\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWildlife and birds\u003c\/strong\u003e: the extra reach that turns a distant subject into a frame-filling one.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSport from the sidelines\u003c\/strong\u003e: 1.4x is often exactly the difference between cropping and not.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTravelling light\u003c\/strong\u003e: reach without a second telephoto in the bag.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCheck compatibility before ordering\u003c\/strong\u003e: RF extenders only fit certain RF telephoto lenses, because the front element protrudes into the lens barrel.\u003c\/p\u003e","brand":"Canon","offers":[{"title":"Default Title","offer_id":53948991504568,"sku":"4549292168044","price":533.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/6426\/8984\/files\/4549292168044_01.jpg?v=1787182400","url":"https:\/\/photofury.com\/en-en\/products\/canon-extender-rf-1-4x","provider":"Photofury","version":"1.0","type":"link"}