I use 18-140 Nikkor . This lens have two A & M focus mode and this lens is AF-S that mean when auto focus is enable the focus ring dose't move. If i do manual focus when the lens is at A mode , does it harm the lens ? or its safe.
Solved : In User-Guide it's explained well : A Mode : Auto focus (Manual Focus * ) available only when single-servo AF ( AF-S ) is selected as the camera focus mode ( So its safe when mode set to A and in settings focus mode set to AF-S ) so i've got my answer with Lens user-guide manual .