【Fringer】 EF-FX PRO version , lens bayonet is made of brass,camera bayonet is made of alloy;
【Electronic aperture ring】FOR PRO VERSION ONLY,just like XF lenses, each small step is 1/3 stop and the final position after the smallest aperture is 'Auto';
【Fast PDAF】DEMO OF X-T2 AND SIGMA 85/1.4 ART; AF-S (central AF point), AF-S (side AF point) and AF-C Note: AF performance varies under different light conditions and for different lens models;
【FAST AND ACCURATE PDAF! 】Only on cameras with X-Trans II & III CMOS. *Only for lenses optimized
【EXIF recorded】ALL LENS INFORMATION ; Lens model ; Focal length; Aperture setting ;Support Image Stabilizer functions of EF mount lenses

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