SIGMA 17-50mm F2.8 EX DC OS HSM For Nikon F mount. Basic operation confirmed on Z50ii via FTZ adapter. It's difficult to tell if the OS is working at this focal length, but there are no unusual movements or sounds. Zoom and AF work without issue. No stickiness. No visible mold or haze. Includes hood, front cap, and rear cap. A standard, fast lens for APS-C cameras. I generally cannot answer questions about compatibility with specific models, as I do not own them. Please research this yourself. Size... Nikon F mount