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

Single unit EF to Sony E Mount Speed Booster 0.71x
✔️ 0.71x magnification, AF support, 4-element optics, USB upgrade

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.

✅ 0.71x magnification
✅ Autofocus support with CDAF and PDAF
✅ 4 elements / 4 groups optical construction
✅ Aperture increases by about 1 stop
✅ Gold-plated copper contacts for reliable EXIF data transmission
✅ USB upgrade port for firmware updates
✅ Aluminum CNC body for durable mounting
✅ Removable tripod mount

💡 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. - expands compatibility of EF glass on Sony E bodies - 0.71x focal length reduction and brightness gain of about 1 stop - preserves autofocus with CDAF/PDAF on supported cameras - firmware updates via USB