{"product_id":"canon-ef-to-sony-e-mount-autofocus-speed-booster-a","title":"Canon EF To Sony E Mount Autofocus Speed Booster Adapter 0.71x For Canon EF Lenses On Sony A9 A7R III A7R II A7III A7S A6500 A6300 With AF Support CDAF And PD","description":"\u003cdiv\u003eSingle unit EF to Sony E Mount Speed Booster 0.71x\u003cbr\u003e\n✔️ 0.71x magnification, AF support, 4-element optics, USB upgrade \u003cp\u003e This adapter lets EF-mount lenses be used on Sony E-mount bodies, primarily on APS-C cameras, delivering brighter images and improved AF performance. It shortens the effective focal length and adds about one stop of light, helping subject separation and low-light focus. \u003c\/p\u003e ✅ 0.71x magnification\u003cbr\u003e\n✅ Autofocus support with CDAF and PDAF\u003cbr\u003e\n✅ 4 elements \/ 4 groups optical construction\u003cbr\u003e\n✅ Aperture increases by about 1 stop\u003cbr\u003e\n✅ Gold-plated copper contacts for reliable EXIF data transmission\u003cbr\u003e\n✅ USB upgrade port for firmware updates\u003cbr\u003e\n✅ Aluminum CNC body for durable mounting\u003cbr\u003e\n✅ Removable tripod mount\u003cbr\u003e \u003cp\u003e💡 What is an EF to Sony E speed booster used for with EF mount lenses on Sony cameras? This handy device helps you extend lens options and brighten images while preserving autofocus on compatible bodies.\n- expands compatibility of EF glass on Sony E bodies\n- 0.71x focal length reduction and brightness gain of about 1 stop\n- preserves autofocus with CDAF\/PDAF on supported cameras\n- firmware updates via USB\n\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amazon","offers":[{"title":"Default Title","offer_id":48234127622379,"sku":"VXB015OJ3R9M","price":259.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/71XgJAf-2iS.jpg?v=1778337684","url":"https:\/\/vxb.com\/products\/canon-ef-to-sony-e-mount-autofocus-speed-booster-a","provider":"VXB Bearings","version":"1.0","type":"link"}