Canon EF Lens to Sony E-mount T Speed Booster


  • Increase maximum aperture by 1 stop.
  • Increase MTF.
  • Makes lens 0.71x wider.
  • Felt material flocked inside to reduce internal reflection.
  • Electronic
    • AF-C tracking during high-speed drive at up to 10fps on Sony A9, A7III and A7RIV.
    • Fast contrast-detection AF on all E-mount cameras with most lenses.
    • Pure phase-detection autofocus support on A9, A7III, A7RIII, A7RII, A7II, A6600, A6500, A6400, A6300 and A6100.
    • Supports 5-axis in-body image stabilization of A7RIV, A7III, A7RIII, A7II, A7RII and A7SII. (Distance information from lens required; 3-axis IBIS if the lens does not transmit distance information.)
    • Powered by camera body. No external power source required.
    • LED indicator shows operation mode, OIS (optical image stabilization) activity and communication status.
    • Efficient switched-mode power supply.
    • Supports image stabilization (IS) lenses.
    • Supports electronic manual focusing (e.g. EF 85/1.2L II and discontinued EF 50/1.0L)
    • EXIF support (focal length, aperture, lens name)
    • Auto magnify (lens with distance information support required)
    • Auto “APS-C Size Capture” on full-frame cameras with Canon EF-S lenses and many third-party DX lenses.