Pixco Camera Adapter Ring Suit For Nikon F Lens to Leica M39 Mount normally ,the shipping time is about 6~15 working days to USA.Please note:If you receive a message indicates that you will receive item(s) longer than 6~15 working days.please don't worry,it is inaccurate. When run into the busy season, Customs thorough investigation, worsening climate etc,the shipping might be delayed.But please don't worry,don't hesitate to contact with me,i will do my best to help you. Compatible with: Nikon F Lens Leica M39 Mount Camera Focusing infinity Diaphragm control of the lens is set manually.