MB SPEF-E-BT3 T CINE NEX-EFEAN  4897050182178

Features and benefits

Optical/Mechanical

° Increase maximum aperture by 1 stop.
° Increase MTF.
° Makes lens 0.71x wider.
° Advanced 5-element/4-group optical design incorporating ultra-high index tantalum-based optical glass by Caldwell Photographic in the USA (patent pending).
° New positive-lock EF lens mount. (Patent pending).
° Rubber gasket protects E-mount connection from dust and moisture.
° Felt material flocked inside the opening to reduce internal reflection.
° The tripod foot is detachable and compatible with Arca Swiss, Markins, Photo Clam ball heads.

Electronic

° Fast contrast-detect AF on all E-mount cameras.
° Phase-detect autofocus support on A7RII, A7II, A6300 and A6500.
° Smooth iris support with the latest Canon (2009+), Tamron (SP series 2013+) and Sigma (2016+) lenses
° 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.
° Aperture control from camera body.
° Custom function button assignable to more than 50 functions on A7 series, A6300 and A6500.
° Dedicated IBIS (in-body image stabilization) switch for A6500, A7II, A7RII and A7SII.
° LED indicator shows operation mode, OIS (optical image stabilization) activity and communication status.
° High performance 32-bit processor and 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, zoom range)
° 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.

Limitations

Optical/mechanical

° Full-frame lens required. EF-S/DX/DC/Di II lenses