1.Electronic aperture ring ,SIMILAR AS NATIVE GF LENSES；Each step = 1/3 stop； User selectable: Setting F number through aperture ring or command dial
2.High performance Phase detection AF supported, FAST AND ACCURATE PDAF! ； Like using native lenses on DSLR； Face/eye detection autofocus is supported, too
3.Support both Lens IS and IBIS CONTROLLED BY CAMERA MENU ； User selectable, Lens IS or IBIS. But not at the same time； Controled by camera menu (Continuous, shooting only, off)；
4.Lateral Chromatic Aberration (LaCA) Correction, CORRECT COLOR FRINGES AT HIGH CONTRAST EDGES AUTOMATICALLY； Built-in lens correction profile database； Profile for current lens is transferred to camera automatically； Jpeg pictures straight out of the camera have LaCA corrected.；
5. EXIF recording , ALL LENS INFORMATION；Well designed and made ,SOLID AND DURABLE