This specific DSLR version (A09) requires an adapter like the Sigma MC-11 or Sony LA-EA series to work on Sony E-mount mirrorless cameras.
No, this model does not feature internal Vibration Compensation (VC). It is best used with cameras that have In-Body Image Stabilization (IBIS) or on a tripod for low-shutter speeds.
No, this lens does not have official weather sealing. It should be protected from heavy rain or extreme dust during outdoor shoots.
Di (Digitally Integrated) signifies that the lens coating and optical design are optimized for both digital SLR sensors and 35mm film cameras.