MB-EF-E-BT5 NEX-EF MkVEAN  4897050182192

Features & Benefits
If both your lens supports optical image stabilization (OIS) and your camera supports sensor-shift, in-body image stabilization (IBIS), the choice is yours on which one to use, or have both of them work in harmony.
Smooth iris support with the latest Canon (2009+), Tamron (SP series 2013+) and Sigma (2016+) lenses.
Custom function button (called Focus Hold button) assignable to more than 50 functions, such as Aperture Preview and Eye-AF, on A7 series, A6300 and A6500.
Dedicated switch controls in-body image stabilization (IBIS) on Sony cameras eqipped with SteadyShot INSIDE.
Sony E-mount teleconverter support.
Cinema EOS lens (CN-E) support, including power zoom, AF and auto iris.
Rubber gasket protects E-mount connection from dust and moisture.

Electronic
Fast contrast-detection AF on all E-mount cameras.
Pure phase-detection autofocus support on A7RII, A7II, A6300 and A6500 (the fastest).
Supports 5-axis in-body image stabilization of A7II, A7RII and A7SII. (Distance information from lens required, 3-axis IBIS if 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)
Distance and zoom display on VG and FS series camcorders, A7 series, A6300 and A6500 (lens with distance information support required).
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.

Optical/mechanical
Felt material flocked inside the opening to reduce internal reflection.
Compatible with Sony FS7 Mark II camera.
Fits both EF and EF-S lenses. (Vignetting at corners may occur with certain EF-S lenses be