|OS - Optical Stabilizer Function|
HSM - Hyper-Sonic Motor
* Nikon mounts do not have an aperture ring. Some functions may not work depending on the camera model. *For Nikon and Canon mounts, Optical Stabilizer (OS) function will not work with film SLR cameras except Nikon F6 and Canon EOS-1V. * When using the APS-C Hood Adapter HA680-01 with digital cameras with larger than APS-C size image sensor, vignetting will occur. Please remove the hood adapter if you are using these cameras.